Questions Asked on
November 30, 2010

math
What does a boy who likes to play with switches do
asked by Anonymous 
Chemistry
Lead is a toxic metal that affects the central nervous system. A Pbcontaminated water sample contains 0.0012% Pb by mass. How much of the water in milliliters contains 145 mg of Pb? (Assume that the density of the solution is 1.0g/mL.)
asked by Kelsey G 
chemistry
The net ionic equations for the following 1. Dissolution of silver oxalate with nitric acid 2. Complexation of the iron(III) by the thiocyanate ion 3. Precipitation of the carbonate ion with barium ion 4. precipitation of the oxalate ion with barium ion 5.
asked by Jake 
Physics
A spring is hung from the ceiling. When a coffee mug is attached to its end, it stretches 3.0 cm before reaching its new equilibrium length. The block is then pulled down slightly and released. What is the frequency of oscillation?
asked by Mike 
writing process
Choose one of the following topics. Write an 8paragraph sentence paragraph that fully develops the topic. a. following instructions is very important. b. Advances in technology are making people less social. c. A high school diploma is important to my
asked by jackie rios 
SPANISH
Tu amiga tiene muy mala memoria, te prestó algunas cosas pero tú le devolviste todo. Escucha sus preguntas y contéstalas (answer them) según el modelo. Oyes: ¿Me devolviste las fotos? Dices y escribes: Sí, te las devolví. Oyes: ¿Y la calculadora?
asked by AYUDA ME PORFAVOR!! :) 
algebra
a local grocery store has plans to construct a rectangular parking lot that is bordered on one side by a highway. there are 1280 feet of fencing avaliable to enclose the other three sides. find the dimensions that will maximize the area of the parking lot.
asked by Anonymous 
PHYSICS
If a fly collides with the windshield of a fast moving bus a) which experiences the greater impact force: the fly or the bus, or is the same force experienced by both? b)which experiences the greater acceleration: the fly or the bus or is the same
asked by CHRISTIE 
Chemistry
132 grams of CH4 reacts with Oxygen gas to produce carbon dioxide and water vapor. give the mass of the oxygen needed to react with all the methane and give the mass of the carbon dioxide and water vapor produced. can somebody explain this to me? i'm lost.
asked by Annabella 
Physics
Pluto’s minimum orbital velocity is 3.7 km/s. What are the values for vP (perihelion velocity) and vA (aphelion velocity)?
asked by Lola 
chemistry
A 275g. sample of nickel at 100 degrees C is placed in 100 g. of water at 22 degrees C. What is the final temperature of water? Assume that no energy is gained or lost to the calorimeter or the surroundings. Specific heat capacity of nickel = .444 J/
asked by Anonymous 
physics
A rifle is fired horizontally and travels 200.0 m The rifle barrel is 1.90m from the ground. What speed must the bullet have been traveling at? Ignore friction. How do I solve this ?
asked by anonymous 
Physics
A 5.4 kg bag of groceries is in equilibrium on an incline of angle θ= 150. Find the magnitude of the normal force on the bag
asked by Abi 
Math
The ocean covers about 71% of the Earth's surface. If the total surface area of the Earth is about 510 million square kilometers, how many square kilometers are covered by the ocean? 362.10
asked by Hayley 
clothing and textile
what are some reasons for controlling fullness
asked by nickey 
Calculus
The amount A in grams of radioactive plutonium remaining in a 20gram sample after t days is given by the formula A=20*(1/2)^(t/140). At what rate is the plutonium decaying when t=2 days?
asked by Sara 
physics
a 5.0 kilogram block weighing 49 newtons sits on a frictionless, horizontal surface, a horizontal force of 20. calculate the magnitude of the acceleration of the block
asked by antonet 
chem help
A sample of methane gas, CH4 was collected over water at 25 degrees celcius and 720 torr. The volume of the wet gas is 2.50L. What will be the volume of the dry methane at a standard pressure?
asked by annonymous 
Physics
25) A 75g ice cube at 0 C is placed in 825g of water at 25 C. a) What is the final temperature of the mixture? b) If the final temperature is 0 C, then how much ice remains? c) change the ice's mass to 300g, and repeat the problem
asked by Y0gi 
math
an empty rectangle tank with a base area of 2400 cm^2 is filed with water from 2 taps. one tap can fill the tank with 12L of water per minute, while the other tap can do it at 3l less perminute. (A) what will be the depth of water in the tank after both
asked by Katherine 
Chemistry
Write the balanced equation and solubility product expression for the solubility equilibrium of Mn3(PO4)2: i thought the answer was Mn3(PO4)2 (s) = Mn^2+(aq) + (PO4)2 ^3 (aq) but that's not right. then for the Ksp expression i thought it was [Mn^2+]
asked by Jake 
Chemistry2
WO3 (s) + 3 H2 (g) > W (s) + 3 H20 (g) Tungsten is obtained commercially by the reduction of WO3 with hydrogen according to the equation above. The following data related to this reaction are available. DeltaH(kilojoules/mole) for WO3 is 839.5. DeltaH
asked by Jeffery 
Grade 11 Physics
Two kids are on a beach pulling an inner tube. One is pulling at a force of 45N[N] and the other one pulling at 60N[SW]. What is the net force? (I tried to do it by taking the 60N and making a right angled triangle with it, i got 42.43N north and west,
asked by Tyler 
Physics
25) A 75g ice cube at 0 C is placed in 825g of water at 25 C. a) What is the final temperature of the mixture? b) If the final temperature is 0 C, then how much ice remains? c) change the ice's mass to 300g, and repeat the problem I don't know how to work
asked by Y0gi 
Physics
55) A 200g block of copper at a temperature of 90 C is dropped into 400g of water at 27 C. The water is contained in a 300g glass container. What is the final temperature of the mixture?
asked by Y0gi 
Chemistry
AgNO3 solutions are often used to plate silver onto other metals. What is the maximum amount of silver in grams that can be plated out of 3.8 L of an AgNO3 solution containing 3.2% Ag by mass? (Assume that the density of the solution is 1.02 g/mL.)
asked by Kelsey G 
geometry
obtuse triangle ABC with obtuse angle B. Point D on side AC such that angle BDC is also obtuse. Angle DAB is 2/3 of angle ABD. Angle BCD is 1/5 of angle CBD is 4 more than angle BAD. Find the measure of angle ABC.
asked by suzy 
Physics
A bicycle wheel of radius .7m is rolling without slipping on a horizontal surface with an angular speed of 2 rev/s when the cyclist begins to uniformly apply the brakes. The bicycle stops in 5 s. Through how many revolutions did the wheel turn during the 5
asked by Kevin 
physics
The curves on a race track are banked to make it easier for cars to go around the curves at high speed. Draw a freebody diagram of a car on a banked curve. From the motion diagram, find the direction of the acceleration (a) What exerts the force in the
asked by max 
physics
A 500 kg car moves along a horizontal road. The car moves with an acceleration 2.5 m/s2 by a driving force of 2500 N when the air resistance is 400 N. Find the friction of the tyre of the car.
asked by Anonymous 
Algebra
Question: Looking below is this answer correct? If you follow the math, you reach the entire population before 8 hours have passed yet the solution says 8.86 hours.... Is the solution giving us the numbers in the set and not the actual elapsed hours???
asked by Chris 
Form1/9th grade
A mixture contains solids: Aluminium,camphor and sugar.Explain how you would obtain a sample of solid sugar from the mixture.
asked by Benjamin 
Physics
A packing crate is placed on a 32° inclined plane. If the coefficient of static friction between the crate and the plane is 0.67, will the crate slide down the plane? What is the minimum angle to which the plane must be raised so that the crate will slide
asked by Jenni 
chemistry 121
3fe+H2OFe3O+4H2 how many grams of steam and iron mist reat to produce 375g of magnetic iron oxide
asked by ngugi 
Chemistry
Determine the volume of 0.250 M KOH solution required to neutralize each of the following samples of sulfuric acid. The neutralization reaction is: H2SO4(aq) + 2KOH(aq) = K2SO49aq) + 2H2O(l) Find: 15 mL of 0.250 M H2SO4
asked by Kelsey G 
physics
A solid cylindrical disk has a radius of 0.17 m. It is mounted to an axle that is perpendicular to the circular end of the disk at its center. When a 35N force is applied tangentially to the disk, perpendicular to the radius, the disk acquires an angular
asked by mackenzie m 
Organic Chem I Lab
I had to react 1propanol with NaBr and H2SO4. I refluxed for one hour and when attempting to separate out the product (product was supposed to be 1bromopropane) via sep funnel either could no longer distinguish between the organis layer and the aqueous
asked by Meredith 
chem homework
a gas occupies a volume of 410mL at 27 degrees Celcius and 740mm Hg pressure. Calculate the volume the has would occupy at STP.
asked by samantha 
physics
Felicia, the ballet dancer, has a mass of 45.0 kg. a.) What is Felicia's weight on Earth? b.) What is Felicia's mass o Jupiter, where the acceleration due to gravity is 25.0 m/s2? c.) What is Felicia's weight on Jupiter?
asked by Jay 
Chemistry
How many lone pairs are on the central atom in BCl3
asked by Brenda 
Physics
A 10kg particle undergoes simple harmonic motion with an amplitude of 2.0mm, a maximum acceleration of 8.0x10^3 m/s^2, and an unknown phase constant (phi) What are: a.) the period of the motion b.) the maximum speed of the particle c.) total mechanical
asked by Greg 
physics
An air puck of mass m1 = 0.45 kg is tied to a string and allowed to revolve in a circle of radius R = 1.0 m on a frictionless horizontal table. The other end of the string passes through a hole in the center of the table, and a mass m2 = 1.10 kg is
asked by melissa 
Physics
A bat emits a chirping sound of frequency 67.0 Hz while moth hunting. The chirp lasts for 1.0 ms and then is silent. The beginning of the echo returns just after the outgoing chirp is finished  how close to the moth is the bat? Assume a cool night with
asked by Dee 
Mat101
5. Which of the following are functions? The last two problems, i.e., b & c, are multi part relations consider all parts when determining whether or not these relations are functions. Explain your reasoning for a, b, and c. a. f(x) = x + 3 b. f(x) = 73 if
asked by Samantha Joseph 
biology
The mouth, small intestine, and kidneys have functions that involve the a. digestion of food, synthesis of vitamins, and filtering of the blood. b. intake, digestion, absorption, and elimination of food and its wastes. c. secretion of bile, digestion of
asked by Lily 
Chemistryurgent!
What volume of 2.5% (w/v) KOH can be prepared from 125 mL of a 5.0% KOH solution?
asked by Madison 
physics
A loudspeaker is placed between two observers who are 111 m apart, along the line connecting them. If one observer records a sound level of 51.9 dB and the other records a sound level of 82.5 dB, how far is the speaker from each observer?
asked by Linda 
physics
The curves on a race track are banked to make it easier for cars to go around the curves at high speed. Draw a freebody diagram of a car on a banked curve. From the motion diagram, find the direction of the acceleration. (a) What exerts the force in the
asked by max 
Physics
19) A 100g aluminum calorimeter contains 250g of water. The two substances are in thermal equilibrium at 10 C. Two metallic blocks are placed in the water. One is a 50g piece of copper at 80 C. The other sample has a mass of 70g and is originally at a
asked by Y0gi 
5th grade math
The diameter of a soup can is about 7cm the label wraps around the can , about howmany cm long must the label be to go all the way around the soup can? use 22/7 for pi
asked by jill 
home econonmics
what is the controlling of fullness
asked by nickey 
Geometry
1. How many sides does a regular polygon have if one exterior angle is 90 degrees? 3 4 5 6 2. The measures of three angles of a quadrilateral are 80, 90, and 103 degrees. Find the measure of the fourth angle. 67 77 87 97 3. The sum of the interior angles
asked by Justin 
11th grade
The curves on a race track are banked to make it easier for cars to go around the curves at high speed. Draw a freebody diagram of a car on a banked curve. From the motion diagram, find the direction of the acceleration (a) What exerts the force in the
asked by max 
physics
A rifle is fired horizontally. The bullet is found to have traveled 200 meters. If the rifle barrel is 1.90 meters above the ground, at what speed must the bullet have been traveling as it left the barrel?
asked by anonymous 
physics
What is the longest wavelength for standing waves on a 238.0 cm long string that is fixed at both ends?
asked by Josh 
Computers
Most personal computers are equipped with a version of the Windows operating system, whereas Apple personal computers have a different operating system. Other choices are also available, such as UNIX and Linux. What do the other systems have to offer that
asked by Anonymous 
physics
A light spring of spring constant k = 160 N/m rests vertically on the bottom of a large beaker of water. A 5.00 kg block of wood (density D = 700 kg/m3) is connected to the spring, and the block ? spring system is allowed to come to a static equilibrium
asked by melissa 
geometry
1. An exterior angle of a regular polygon measures 30 degrees. What is the measure of an interior angle? 30 60 120 150 2. How many degrees are in each interior angle of a regular pentagon? 50 72 108 120 3. If all of the diagonals are drawn from a vertex of
asked by Justin 
Chemistry
A 327 ML sample of unknown HCI solution reacts completely with Na2CO3 to form 20.1 g CO2 What was the concentration of the HCI solution?
asked by Cathy Miller 
math
A supplier provides parts to a manufacturing company that demands JIT deliveries. At the present time it takes 6 hours to make a roundtrip between the supplier's warehouse and the customer, including loading, travel and unloading time. The lot size is 12
asked by jackie 
Chemistry/Science  please help!
An aqueous mixture containing starch (a colloid), NaCl, glucose, and albumin (a colloid) is placed in a dialyzing bag and immersed in distilled water. Which of the following correctly describes the location of the indicated substance after dialysis?
asked by Madison 
physics HELP
A projectile is fired with an initial speed of 1000 m/s at an angle of 37 degrees above the horizontal. If air resistance is neglected, the horizontal component of the projectile's velocity after 20 s is approximately A) 600 m/s B) 800 m/s C) 640 m/s D) 40
asked by anonymous 
stats  URGENT!!!!
the following sample observations were randomly selected: x: 2,5,6,8,9,11,15 y: 22,23,16,18,19,13,12 a)calculate the correlation coefficient, r b) determine the regression equation c) determine the value of Y when X=20
asked by skitter 
Chemistry
The solubility of calcium sulfate at 30 degrees C is .209 g/100mL solution. Calculate its Ksp i calculated it and got 1.5 x 10 ^2 but the program said that it was wrong if you could help explain how to do it i would appreciate it
asked by Joe 
Math
which of the following is NOT a unit of measurment in the metric system A. Meter B. Liter C. Pint D. Gram
asked by Mare 
calculus
The velocity of a particle moving along the taxis is given by f(t)=2+.05t cm/sec. Use a graph of y=f(t) to find the exact change in position (distance traveled) for the particle from t=2 to t=8.
asked by Anonymous 
Organic Chem I Lab
I had to react 1propanol with NaBr and H2SO4. I refluxed for one hour and when attempting to separate out the product (product was supposed to be 1bromopropane) via sep funnel either could no longer distinguish between the organis layer and the aqueous
asked by Meredith 
social studies
What did the Spanish hope to do in California?
asked by vivian 
Pharmaceutical Dosage Forms
If there is 1 g KH2PO4 and 1 g K2HPO4 in 100mL of solution, what is the mEq/mL of potassium? The Answer is 0.19mEq/mL. But I need to show work on how to get the answer. Textbook Applied physical pharmacy By Mansoor M. Amiji, Beverly J. Sandmann Chapter 3
asked by Jay 
Chemistry
how do I write out this problem? How many grams of lithium metal would be produced if 0.500 grams of magnesium was added to a solution of lithium chloride
asked by Tosha 
college
If 0.0900 g of a metal, M, reacts with excess hydrochloric acid to form 5.00*10(exp.)3 moles of hydrogen gas and a solution of MCl(subscript)3. Calculate the molar mass of metal, M and identify it. The unbalanced equation is: M(s)+ HCl(aq) =>MCl(sub.)3 +
asked by Alex 
geometry
kite ABCD with angle A=60 degrees and angle C=90 degrees, diagonal DB=12 find the area and perimeter
asked by Kathy 
Ashford SAP for FINANCIAL AID
I have read in the handbook about SAP.I pass 2 of 3 courses but my GPA IS 2.0 AS REQUIRED.My grade A C+ and F which is 62.24%,since when has a grade of 62 is a F???? I know it is a D.If I am mistaken about what in the handbook for SAP so be it,but I am
asked by E 
art
I have an image by Takashi Murakami.that I need a professional opinion for complete a detailed analysis of the image using all the visual elements and principles of design. The image is Tan Tan Bo Puking—a.k.a. Gero Tan (2002).
asked by Mike 
english
your school has been invited to send a team of students to take part in the association of World Youth Groups.write a letter to your year group,inviting students to become part of the team .in the letter you need to tell them 1)for which activity u r
asked by sweetie 
physics
A 10 g particle undergoes Simple Harmonic Motion with an amplitude of 2.0 mm, a maximum acceleration of magnitude 8.0 X 10^3 m/s^2, and an unknown phase constant, theta. What are a.) the period of the motion, b.) the maximum speed of the particle, and c.)
asked by Scott 
physics
Suppose you are riding a stationary exercise bicycle, and the electronic meter indicates that the wheel is rotating at 8.7 rad/s. The wheel has a radius of 0.30 m. If you ride the bike for 2130 s, how far would you have gone if the bike could move?
asked by mackenzie m 
physicS
What is the longest wavelength for standing waves on a 238.0 cm long string that is fixed at both ends?
asked by Josh 
Physics
A glass windowpane in a home is 0.62 cm thick and has dimensions 1.0 m x 2.0 m. On a certain day, the indoor temperature is 25 C and the outdoor temperature is 0 C. a) What is the rate at which energy is transferred by heat through the glass? b) How much
asked by Y0gi 
biology
When an impulse moves down the axon, a. sodium ions first rush out of the cell. b. a small part of the axon momentarily reverses its polarity. c. the resting potential of the cell does not change. d. potassium ions are pumped into the axon. B?
asked by Lily 
Physics
60) A class of 10 students taking an exam has a power output per student of about 200W. Assume the initial temperature of the room is 20 C and that its dimensions are 6.0 m by 15.0 m by 3.0 m. What is the temperature of the room at the end of 1.0 h if all
asked by Y0gi 
FINANCE
Crimini Foods is offered a $400,000 line of credit for six months at an APR of 10%. This loan has a loan origination fee of 2%. What is the actual sixmonth interest rate paid, expressed as an EAR
asked by KEVIN 
Math
Half of the students in Sonia's class are girls. Half of the girls have brown hair. Half of the brown haired girls have brown eyes. There are 4 girls with brown hair and brown eyes. How many students are in Sonia's class?
asked by Manasa 
Chemistry
Need help with this problem in order to figure out three others. What volume of 2.25 M HCI in liters is needed to Completely react with 0.500 L of 0.400 M Na2CO3?
asked by Evette C. 
science
I'm doing my science homework and I have a hard question I cant answer. The question is: how do we look like when we pay attention? I would really apperciate if someone would help me with this. Thank You!
asked by Luna 
Language (gerunds)
Carla was talking in a low whisper to her best friend. I think that there is not a gerund. Carla noun was talking verb and the rest are both prep phrases
asked by michael 
chemistry urgent
a mixture of NO, CO2, and O2 gases has a total pressure of 2.5x10^3 torr. if the partial pressure of NO is 800 torr and CO2 is 600 torr, what is the partial pressure of O2? Dr. Bob. Please help
asked by Lynn 
Chemistry
A buffer is prepared by mixing 205 mL of .452 M HCl and .500 L of .400 M sodium acetate. Ka =1.80 x 10^5 I got the pH is 4.79 but i can't figure out the grams of KOH the problem says how many grams of KOH must be added to .500 L of the buffer to change
asked by Yumi 
Chemistry
Determine the volume of 0.250 M KOH solution required to neutralize each of the following samples of sulfuric acid. The neutralization reaction is: H2SO4(aq) + 2KOH(aq) = K2SO49aq) + 2H2O(l) Find: 205 mL of 0.130 M H2SO4
asked by Kelsey G 
English
1.Throughout his life, Chavez focused on nonviolent action. 2.He organized several boycotts of grapes and lettuce. 3.In California there was work for farmworkers if they could go from one farm to another. 4.In 1937, Cesar Chavez's family did not have
asked by Chris 
chem help!
An expandable balloon contains 1400L of He at .950atm pressure and 18 degrees Celcius. At an altitude of 22 miles (temperature of 2.0 degrees Celcius and pressure of 4.0 torr), what will be the volume of the balloon?
asked by annonymous 
social studies
In analyzing the Hellenistic kingdoms, what presentday countries control territory that was controlled by the Seleucid empire? My answer is Turkey, Syria and Iraq. Is this correct??
asked by Reed 
Math
Solve using Determinants and Cramer's Rule? I was absent and missed the lecture on Cramer's rule and Determinants and have no idea how to start the homework.. The directions and problem are as follows: Using Cramer's Rule, set this problem up to find "a".
asked by Euphoria 
math
a grocery store sells 6 pounds of apples for $4. how much will 8 pounds of apples cost? round your answer to the nearest cent.
asked by ginger 
math
A square room has perimeter of 32 feet. How. Many many square floor tiles with sides 1 foot long are needed to cover floor
asked by tim 
english
letters that make schwa sound in compass
asked by seema 
Math 5th grade
how is the number of zeros in the quotient of 420 divided 7 = 60 related to the number of zeros in the dividend
asked by AJ 
5th grade word problem math
the teacher asked the students to add up all the numbers from 1 to 100.It only took carl a minute to come up with the answer. Can you figure what carl did to come up with the answer and what is the correct answer.Hint: there is a pattern.
asked by tryston 
chemistry
Enthalpy and Entropy in Reactions and Solutions Introduction In the course of most physical processes and chemical reactions there is a change in energy. In chemistry what is normally measured is H (enthalpy change), the change in heat at constant pressure
asked by allison 
chemistry
How many liters of carbon dioxide gas will be produced from the decompostion of 5.0 grams of sodium hydrogen carbonate? How do I write out equation and solve it
asked by Tosha 
spanish
I have a question about this phrase translated to Spanish. "Well, yes. I enjoy studying Spanish very much." Is it this way? Pues si, yo estudio espanol mucho. or Pues si, yo estudiar espanol mucho. using the infinitive form of estudiar. Thank you.
asked by Jeff 
AP Chemistry
A mixture of argon and mercury vapor used in advertising signs emits light of wavelength 610 nm. Calculate the energy change resulting from the emission of 1.00 mol of photons at this wavelength. Answer in units of kJ/mol.
asked by Billy 
Physics
In a damped oscillator with m = 248 g, k = 80.6 N/m, and b = 67.4 g/s, what is the ratio of the amplitude of the damped oscillations to the initial amplitude at the end of 20 cycles?
asked by Trent 
math
A rectangular prism has a volume of 8 cubic yards. Assume the dimensions are whole numbers. What dimensions yield a prism with the greatest surface area? the leaset surface area?
asked by Mally 
math
an empty rectangle tank with a base area of 2400 cm^2 is filed with water from 2 taps. one tap can fill the tank with 12L of water per minute, while the other tap can do it at 3l less perminute. (A) what will be the depth of water in the tank after both
asked by Katherine 
Terminal Velocity
How can u determine that a falling object has reached terminal velocity from a velocity time graph of its motion? u can determine if a falling object has reached terminal velocity from a velocitytime graph of its motion by its stop of acceleration. The
asked by Teya 
chem: gases, liquids, solids
How many kilojoules of heat is required to completely covert 60.0 grams of water at 32.0° C to steam at 100°C? For water: s = 4.179 J/g °C (delta)H fusion = 6.01 kJ/mol (delta)H vap = 40.7 kJ/mol
asked by Dani 
Physics
If I have a diagram of Kepler's laws of planetary motion and it shows change in t1 larger than change in t2 and A1 larger than A2 and asks the question: which of the following is correct? 1.A3 = A3 2.change in t3 > change t3 3.if change t3 = change in t2,
asked by JamieLynne 
physics
Find the center of mass of the carbon monoxide molecule , given that carbon has a mass of 12 u, oxygen has a mass of 16 u , and the two atoms are 0.111 nm apart.
asked by Mattie 
Phys
A series of waves traveling at 200m/sec are being generated by a 100 Hz source. A point at the very top of the crest of a certain wave is _______ meters from a corresponding point 3 'crests' away. 0 1.5 2.7 4 6.0 12.0 16.0 30000 I think its 4 b/c
asked by Kristina 
FINANCE
Carborundum Metals issues commercial paper with a face value of $1,000,000 and a maturity of three months. Carborundum receives net proceeds of $992,000 when it sells the paper. If the prime rate is 8% APR compounded quarterly, how much savings in interest
asked by KEVIN 
chem
Ca(s) + 2 H2O(l) Ca(OH)2(aq) + H2(g) acidbase doubledisplacement gas evolution oxidationreduction precipitation singledisplacement synthesis whichs one(s) is it?? thanks
asked by hannah 
college
A supplier provides parts to a manufacturing company that demands JIT deliveries. At the present time it takes 6 hours to make a roundtrip between the supplier's warehouse and the customer, including loading, travel and unloading time. The lot size is 12
asked by jackie 
Math
Mae Assurian is an electrician. She works form 6:45 a.m. to 3:30 p.m. Monday through Friday, and takes a 45minute break for lunch. How many hours per week does Mae work?
asked by Anonymous 
chemistry
if 3.86x 10^22 atoms of aluminum meatal react with cupric sulfate, how many grams of copper metal will be created. How do I write this problem out and solve it
asked by Tosha 
Physics
A horizontal force of magnitude 30.0 N pushes a block of mass 3.85 kg a distance of 3.00 m across a floor, where the coefficient of kinetic friction is 0.600 a.)How much work is done by that applied force on the blockfloor system? b.)During that
asked by Sam 
Physics
Find the center of mass of the carbon monoxide molecule , given that carbon has a mass of 12 u, oxygen has a mass of 16 u , and the two atoms are 0.111 nm apart.
asked by Mattie 
geometry
solve this equation (w9)*(w4)
asked by josh 
2nd grade
My tens digit is double the ones digit.I am less than 50 and greater than 40
asked by Margeret 
chemistry
what is the equilibrium concentration of acetate ion if the equilibrium concentration of acetic acid is .40 M, the pH is 3.85, and Ka is 1.8E05?
asked by Anna 
Chemistry
What volume of a 0.33 M Mg(NO3)2 solution contains 96 g of Mg(NO3)2?
asked by Kelsey G 
Texas History
How did the law of April 6,1830 change relations betweens Texas and the Mexican government?
asked by Brit 
chemistry urgent
given the reaction: 2 Al + 3 H2SO4 > Al2(SO4)3 + 3 H2 what volume of H2 gas measured at STP will be produced from 5.4 grams of AL reacting with an excess of H2SO4?
asked by lianne 
physics
Two thin rectangular sheets (0.22 m 0.35 m) are identical. In the first sheet the axis of rotation lies along the 0.22m side, and in the second it lies along the 0.35m side. The same torque is applied to each sheet. The first sheet, starting from rest,
asked by mackenzie m 
Chemistry
Cooking oil has a boiling pt of 200 degress, water is 100 degrees. explain theses facts given the strength of waters hydrogen bonds
asked by Donna 
Math
is the indefinite integral of 4x^3sinx^4dx = cosx^4+c
asked by Jess 
math
How many different license plates could be made if they have one or two letters followed by 1,2,or 3 digits? Reptetitions are allowed. I figured that 26 would be for 1 letter and 52 for 2 letters so (26+52) but not sure how to figure the numbers part.
asked by m 
Chemistry
A 120. mL sample of a gas is at a pressure of 1.50 atm. If the temperature remains constant, what will be its volume at 3.50 atm of pressure?
asked by Kiesha 
PreAlgebra
Write each ratio in simplified form. 6 3/10 to 1 4/5
asked by Hayden 
college
A ladder 10 feet long rests against a vertical wall. If the bottom of the ladder slides away from the wall at a speed of 2 ft/s, how fast is the angle between the top of the ladder and the wall changing when the angle is /4 radians?
asked by Emilia 
11th grade
A balloon at contains 0.5 L of gas at a constant pressure of 1.0 atm. If the pressure is increased to 3.0 atm, what will be the volume of the gas?
asked by Kiesha 
Physics
If a baseball is thrown at an angle of elevation of 30 degrees, its range in the absence of air resistance is less than that of one thrown at ___. The answer is 55 degrees. My question is, how did my teacher get this answer? An explanation and an equation
asked by Max Lee 
MathTrigonometry
Master Chief is trapped on an island with a Scorpion Tank as his only means of defense. An enemy Covenant jet fighter just landed on a smaller island across the water. Master Chief would like to fire a shell across the water directly at the jet. However,
asked by Duane 
math
a cold front moves in at noon and in 5 hours, the temperature had dropped 23%. the temperature at 5:00 p.m. was 14%. let x be the temperature at noon. write an equation to find x.
asked by anne 
chemistry
what is the pH of an .200 M aqueous solution of NaOH?
asked by Anna 
chemistry
A mixture of 8.00 g He and 26.5 g Ne has a pressure of 820. mm Hg. What is the partial pressure of each of the gases?
asked by rose 
physics
What force is needed to accelerate a child on a sled with the total mass of 43kg at 1.5m/s
asked by karen 
5th grade
Draw a triangle with a perimeter of 50 ft.
asked by Chance 
chemistry
is a negative Kc possible. Also, is a negative Ka possible?
asked by Anna 
10th grade
whats the answer to 54x2y  12x2y2
asked by unknown 
chemistry
Which of the following acids has the weakest conjugate base? a....4.2E09 b...9.2E03 c....6.3E06 d....1.2E01
asked by Anna 
science
suppose you have7 pieces of wood shown to the right . predict what will happen to the mass of the pieces of wood if you put them together without cutting them to make a birdhouse explain
asked by kelli 
chem
when 1.00g of sucrose C12H22O11 was combusted in a calorimeter to give CO1 and H20, the temperature rose from 25.00 to 27.32 C. The calorimeter itself had a heat capacity of 837JC and was submersed in 1500.0g of water. Find the heat of combustion of
asked by joanna 
chemistry urgent
calculate the number of joules of heat required to change 85.0 grams of water at 25oC to steam at 10oC (heat of vaporization of water = 2260 j/g and specific heat of water = 4.18 j/g oC)
asked by Lynn 
chemistry
A sample of sulfer, mass 2.56 g is burned in excess oxygen inside a calorimeter of heat capacity 923JK and insulated by 815g of water. If the sole product of combustion is SO2, what is the expected increase in temperature? I don't need the answer, just the
asked by joanna 
Chemistry
A saline solution contains 1.3% NaCl by mass. How much NaCl is present in 83.2g of this solution?
asked by Kelsey G 
physics
A 9 kg block initially at rest is pulled to the right along a horizontal, frictionless surface by a constant, horizontal force of 18.8 N. Find the speed of the block after it has moved 3.3 m. Answer in units of m/s.
asked by Anonymous 
math
the number of pages is a 2digit number. the number of photos on a page is a 1 digit number. the number of pages is 60 more than the number of photos on a page. the number of pages is divided by the number of photos on a page is 16. What is the number of
asked by Chris 
math
what is 0.0775 rounded to the hundredths place?
asked by prishany 
Chemistry: gases, liquids, solids problem
4 NH4NO3 > 8 H2O + 4 N2 + 2 O2 What will be the total volume in liters of gas produced at 720. mm Hg and 570.0°C when 2.50 g of NH4NO3 completely decomposes? Use molar masses with at least as many significant figures as the data given.
asked by Dani 
Math
4700 is borrowed at a rate of 16% interest per year, compounded quarterly. Find the amount due at the end of 4 years
asked by Jaclyn 
english
Need help with writing an essay. My essay will be about giving advices to high school students on how to be a successful. I have to create arguements for it and I don't know how. At first I want to give a difinition of the word "Successful".Then write
asked by Luna 
us history
i need help with a good argument for pro socialism and a poster idea. help??
asked by Brittanii 
5th grade math
6 1/8  x = 1 7/8 ? would it be 4 1/8 = x
asked by jill 
English
1.He lived with his parents, brothers, and sisters. 2.Those in this small Mexican American community were worried and frightened. 3.That was the time when Cesar Chavez first lived among the migrant workers. 4.Chavez became a spokesperson for poor
asked by chris 
PhysicsPlease check
If I have a diagram of Kepler's laws of planetary motion and it shows change in t1 larger than change in t2 and A1 larger than A2 and asks the question: which of the following is correct? 1.A3 = A3 2.change in t3 > change t3 3.if change t3 = change in t2,
asked by JamieLynne 
Chemistry
An electrochemical cell is created using gold and magnesium halfcells. a. Determine which halfcell will undergo oxidation and which will undergo reduction, identify anode and cathode, and calculate the voltage for the cell. You do not need to diagram the
asked by Jeffery 
FINANCE
Gemini Real Estate is offered a $2 million line of credit for four months at an APR of 9%. This loan has a loan origination fee of 1.5%. What is the actual fourmonth interest rate paid, expressed as an EAR
asked by KEVIN 
Physics
An amusement ride consists of a large horizontal circular platform turning at 12 rpm. People attempt to sit on this platform without slipping toward the outer edge. The coefficient of static friction is 0.15. Determine the distance from the center of the
asked by Tim 
math
You and a friend each have a standard and wellshuffled 52card deck of cards. You draw a card from your deck and your friend draws a card from her deck. Match the following results with their respective probabilities: Question 1 answers You each pick the
asked by hi 
world history
What does P.I.G.E.A.R.S stand for?
asked by Danny Long 
Spanish
El debate: Ya casi llegÃ³ el momento del debate. AquÃ tienes algunos comentarios que el candidato estÃ¡ practicando para decir mÃ¡s tarde. Elige entre el subjuntivo y el indicativo para completar las oraciones con lo que dice. cumplir hacer dejar
asked by amanda 
physics
A projectile was fired at 35 degrees above the horizontal. At the highest point in its trajectory its speed was 200 m/s. If air resistance is ignored, the initial velocity had a horizontal component of 0. How is this possible? Someone explain it for me
asked by AJ 
stats  URGENT!!!!
the following sample observations were randomly selected: x: 2,5,6,8,9,11,15 y: 22,23,16,18,19,13,12 a)calculate the correlation coefficient, r b) determine the regression equation c) determine the value of Y when X=20
asked by skitter 
algebra 2 multiple choice HELP
find f(a), if f(t) = 2t2(squared)t2 A. 2(a+t)2(squared)2t+12 B. 2(t+a)2(squared)2(t+a)2 C. 2a2(squared)a2 D. 4a2(squared)2a2 I put (squared) because the two in front of it means it's being squared... please help. thanks!
asked by sara 
algebra
Find the xintercept and the yintercept of the graph of: 4x2y=8 a. (2, 4) b. 4;2 c. (4, 2) d. 2;4 I'm stuck between a and d. anyone helpp?
asked by sonya 
chemistry
In propanol, cholesterol is 2.7 times more soluble at 43°C than at 20°C. If a saturated propanol solution is prepared at 43°C , what proportion of the cholesterol will crystallize upon cooling to 20°C?
asked by lisa 
4th grade
CHIEF OR RULER OF A NARRAGANSETT TERRITORY
asked by tina 
physics
A 7.2 cm tall cylinder floats in water with its axis perpendicular to the surface. The length of the cylinder above water is 1.4 cm. What is the cylinder's mass density?
asked by kate 
physics
In a church choir loft, two parallel walls are 5.70 m apart. The singers stand against the north wall. The organist faces the south wall, sitting 0.900 m away from it. So that she can see the choir, a flat mirror 0.600 m wide is mounted on the south wall,
asked by Jessica 
calculus
find all critical points of f(x) = x^4 – 4x^3 + 4x^2
asked by pinki 
Math
Identify u and du for the integral. 1. The integral of [(cosx)/(sin^(2)x)]dx 2. The integral of sec2xtan2xdx
asked by Jess 
chemistry
is there a typo to this cell notation answer Au(s)AuCl4(aq), Cl(aq) F2(g) F(aq) Pt(s) If i look at the anode, should Cl stay on the side of Au not AuCl4 Au + 4Cl yield AuCl4 + 3e
asked by flame 
geometry
right triangle ABC with right angle C, AC=22 and BC=6, altitude CD where D is on hypotenuse AB. What is the ratio of the area of triangle ADC to the area of triangle CDB? Write ratio as n:1 and round n to the nearest hundredth.
asked by suzy 
maths &chemistry
Nitrogen tetraoxide is known to dissociate accoding to the equation;N2O4(g)_2NO2(g).A250mlsample of the gas mixture weighs 0.257bar.Calculate the partial pressure of each gas.(Hint:obtain the pressure it had before dissociation ,and then use the idea of
asked by SAIDI 
college
I have a project english composition 205, about the tom wait's musician
asked by Mirna 
English
This is the number of years that someone has lived, or that something has existed. (What is the part of speech of 'that'? Is 'that' a relative pronoun or a relative adverb? Can we use 'when' instead of 'that' in the sentence?)
asked by rfvv 
algebra
6x7x=20 what is the value of x
asked by karla 
Physics
A 400 N woman is totally immersed in a water tank and displaces of water. What is her density in ?
asked by Sam 
Chem
a container of 2.00 moles of an ideal gas as 1000 K undergoes a constant pressure and volume process in which the number of moles is increased to 5moles. what is the final temperature of the gas. How do I start this? Do I somehow use the ideal gas law?
asked by Don 
geometry
An arc ABC is one quarter of a circle with center B and radius 6. Rectangle EDFB is inscribed in ABC. If ED + DF = 8, find the perimeter ADCFE. Round your answer to the nearest hundredth.
asked by antonne 
Chemistry
I need to be able to tie in acetic acid and boric acid. To decipher properties of acidbase chemistry and how they adhere to Le Chatelier’s principle. I appreciate any input....
asked by Colleen 
language (gerunds)
The powerful writing made the novel exciting to read. I think that there is not a gerund in this sentence. Or would writing be the gerund used as a subject?
asked by michael 
algebra1
3+8x8=8 how do u solve it?
asked by josh 
physics help me please!
A certain wave is incident on an interface at an angle of 40 deg. The wave emerges into the other material at an angle of 30 deg. Crossing the interface, the wave: a. increased speed b. reduced speed c. maintained constant d. more info is needed I think
asked by Amber 
Calculus
a particle moves along a line so that at any time t its position is given by x(t)=2(pi)t + cos2(pi)t find velocity find acceleration what are the values of t, 0
asked by John 
chem
Classify each of the following reactions in as many ways as possible. (Select all that apply.) CuO + 2 HCl > CuCl2 + H2O you can select: acidbase(unsure because there is an acid but im not sure if theres a base) doubledisplacement gas evolutionx
asked by hannah 
chemistry urgent
if 100 g of iron were reacted with 100 g of oxygen according to the reaction below, the maximum yield in grams of Fe2O3 would be: Dr. Bob. Please help.
asked by Lynn 
calculus
Find the equation of tangent line to the curve Y=2/x^2+x At the point where x=1
asked by pinki 
Geometry
If the angles of a triangle have the ratio 3:4:5 and you want to know what they are would you go 3x + 4x + 5x = 180 and solve for x?
asked by Debbie 
Calculus
f(x)=xe^(2x) with domain 0< or equal to x< or equal to 10 find all values of x for which the graph of f is increasing and all values of x for which the graph is decreasing give the x and y coordinates if all absolute max and min points
asked by John 
math
Mr. Jackson is preparing bags of treats to give trick or treaters on Halloween. He has 48 pieces of candy and 60 pieces of gum. he uses all the candy and gum, and he puts the same ratio of candy to gum in each bag. What is the largest number of bags he
asked by Katherine 
biology
The function of neurons is to a. maintain a difference in electrical charge across the cell membrane. b. have specific ions cross the membrane through ion channels. c. maintain a membrane potential with charged ions on either side of the cell membrane. d.
asked by Lily 
math
The numbers 110 are placed on cards, and the cards are put in a hat. If two cards are drawn, in order, without replacement, what is the probability that one number is even and the other a prime? I know there are 4 primes2,3,5,7 and 5 even numbers
asked by m 
math
How many games are played in a women's soccer conference if there are eight teams and all teams play each other twice? I figured 8x7x2=112 since this is 8 teams and 7 opponents per team and playing twice am i right?
asked by m 
Algebra 2
Three whole numbers, when added two at a time, have sums of 763, 1003, and 1064. Compute the largest of the original three numbers. I have no idea how to do this..HELP PLEASE?
asked by Mary 
geometry
If XZ = 18 cm, YZ = 27 cm, and AC = 28 cm, what is the length of BC? XZ, YZ= triangel (1) AC=triangle (2)
asked by matt alicea 
biology
The brain stem is responsible for a. directing information in the brain and secreting hormones. b. regulating vital functions and memory. c. motor processing and regulating homeostatic functions. d. sensory processing and regulating balance. B?
asked by Lily 
physics
car has tires of radius 25 cm. The car accelerates from rest at a constant rate of 2.0m/s/s find angular acceleration. find angular displacement. how many revolutions is this?
asked by Anonymous 
stats  URGENT!!!!
the following sample observations were randomly selected: x: 2,5,6,8,9,11,15 y: 22,23,16,18,19,13,12 a)calculate the correlation coefficient, r b) determine the regression equation c) determine the value of Y when X=20
asked by skitter 
science
how much energy is required to raise 5 kg of silver 36 degrees celcius with a specific heat of 234 j/kg degrees celcius
asked by justin 
5th grade math
The number of pages is a 2digit number. the number of photos on a page is a 1 digit number. the number of pages is 60 more than the number of photos on a page. the number of pages is divided by the number of photos on a page is 16. What is the number of
asked by Chris 
physical science
what does Q=m times t times c. mean and wat are the meaning of each letter
asked by marco 
physics
a 145g baseball is thrown up at 40 m/s. after traveling a distance of 50m in the air, the baseball is caught. the ball experienced air resistance of what magnitude?
asked by Anonymous 
English question
Why do you think Douglass says of the killing of slave Demby ‘in an instant poor Demby was no more. His mangled body sank out of sight, and blood and brains marked the water where he stood.”? To me it seem as if hes sayint how he died instantly but idk
asked by Kyle 
chemistry urgent
what volume in liters of gaseous hydrogen chloride can be prepared from 40.0 liters of hydrogen with an exces of chlorine? all volumes are measured at STP: H + Cl > HCl
asked by lianne 
Finance
A firm issues threemonth commercial paper with $200,000 face value and receives $192,000. What is the EAR the firm is paying for these funds? I WOULD BE HAPPY IF SOME ONE CAN RESPOND TO MY QUESTION IN NUMCERS.
asked by KEVIN 
physics
Suppose you are riding a stationary exercise bicycle, and the electronic meter indicates that the wheel is rotating at 8.6 rad/s. The wheel has a radius of 0.30 m. If you ride the bike for 2070 s, how far would you have gone if the bike could move?
asked by michelle 
physics
ball rolls with a speed of 2 m/s across tabletop that is 1 meter above floor. Reaching edge of table, ball follows parabolic path to landing spot on floor. How far along the flor is this spot from the table? How do I set this up? Thank you.
asked by anonymous 
Physics
A 10.0 g bullet is fired into a 1.0 kg block initially at rest on a rough surface and connected to a spring with k = 200N/m. Immediately following the collision the block has a speed of 2.0 m/s. The coefficient of friction between the ground and the block
asked by Hailey 
English
1.(The hikers walked) until they were exhausted. 2.Has John met the family (who moved in next door)? 3.Gerry needs the book (that is on the shelf). Identify the word group in () and tell if independent clause or not an independent clause. 1.Independent
asked by Tracy 
physics
a 1200 kg car has KE=300,000 J. What is the cars velocity?
asked by Fred 
physics
Suppose that you measured the moment of inertia of the system as I = 5.05 kgm2. Assume the diameter of the pulley around which you wrap the string is d = 2.5 cm. a) suppose the system is initially spinning at angular speed ωo = 2.05 rad/s. After you drop
asked by dan 
math
66 2/3 % of what number is 64.2% I know the answer is 64.2% put I need the steps to get there.... thank you
asked by ray 
grade 9 GEOGRAPHY
I am doing a project on the mixedwood plains. I have written this question before but I just want to know if I am on the right track. I need to to find suggestions on how the sensitive tourist can minimize their impact on the local environment and
asked by peyton 
brooks
A 3.90 kg block is in equilibrium on an incline of 24.1◦. The acceleration of gravity is 9.81 m/s2 . What is Fn of the incline on the block? Answer in units of N.
asked by brooks 
Probability and Statistics
Can someone tell me what formula I should use? The number of milligrams of tar in filtered and unfiltered cigarettes is being compared. The following cigarettes are pulled to be part of the samples: Filtered: bunch of data Unfiltered: bunch of data The
asked by Samuel 
geometry
what is 5y=3/4x in slope intercept form?
asked by Rose 
math
Stan wants to arrange his books in order of size. Half of the books are medium, 2/10 are large and 12 are small. What is the total number of books Stan has?
asked by Anonymous 
5th math
5.6 +(0.17 + 126)= ? (5.6______)+ 126) 69*(_____*426)=(69*426)*1.4 please! help me with these problem t hank you!! show me how you got an answer for each problem too.
asked by pat 
Physics Help PLEASE!!!
A spring that is 0.7 m in length elongates to 1.06 m when a 20 Newton force is exerted to stretch the spring. By how much more does the spring stretch when an additional 8 Newtons of force is exerted on it? 1.01 0.053 0.072 0.45 0.144 0.561 0.736 1.06 I
asked by Jael 
Calculus
The machine earns the company revenue at a continuous rate of 62000 t + 38000 dollars per year during the first six months of operation, and at the continuous rate of $69000 per year after the first six months. The cost of the machine is $170000. The
asked by Will 
child care
which of the following is an obstacle to learning for a begininning mover? A.knowledge of what elements of the movement to focus on B.chronic indifference characteristics between birth and age three C.shorter time to monitor perceptual input from the
asked by Shannon 
Language (gerunds)
Pam is studying for her French exam. I know that studying is the gerund, but is it a do, io or predicate nominative?
asked by michael 
English
1. This is my cousin David. 2. Please meet my cousin David. 3. Let me introduce my cousin David. (Do they have the same meaing? Are they the expressions we can use when we introduce somebody to others? Why do we have to use 'meet' in this situation? Can't
asked by rfvv 
geometry
The distance between Sue and a dude ranch was 30 mi. straight accross a rattlsnakeinfested canyon. Instead of crossing the canyon, she hiked due north for a long time and then hiked due east for a shorter leg of the journey to the ranch. If she averaged 4
asked by antonne 
marketing
Which of the following statements regarding marketing strategies is FALSE? A. These strategies must meet the needs of target customers, and a firm is likely to get a competitive advantage if it just meets needs in the same way as some other firm. B. These
asked by Anonymous 
programming
Write a top down program to calculate the velocity and the height of a ball of mass m thrown at mars 40times
asked by sog 
English
1. I cannot be an actor. 2. I am not an actor at all. 3. I cannot become an actor. (What does #1 mean? Is #1 similar to #2 or #3?)
asked by rfvv 
College Algebra
ln 2+6 ln x+4 ln (x^2=8) How would I rewrite the expression? I'm struggling in Math.
asked by Katie 
Ethics
What differentiates the act of grouping people from the act of stereotyping?
asked by Rochelle 
Chemistry
How does the outer energy level(period)relate to the atomic radius?
asked by Sandy 
chemistry
Which of the following mixtures would made the most effective buffer? a.....100. mL 5.0M HF/0.05M NaF b....100. mL 0.05M HF/0.05M NaF c....500. mL 5.0M HF/ 5.0M Nal d....100. mL 5.0M HF/5.0M NaF
asked by Anonymous 
Chemistry
Calculate the concentration of the solution in mass percent: 9.95 g C2H6O in 65.1 g H2O.
asked by Kelsey G 
Chemistry
Calculate the concentration of the solution in mass percent: 122 g KCl in 628 g H2O.
asked by Kelsey G 
algebra
the length of a rectangular parking lot is 3 meters less than twice its width, and the perimeter is 408 meters, find the length of the parking lot.
asked by peeka 
Chemistry
Determine the amount of potassium chloride in each of the following solutions: 21.7g of a solution containing 1.10% KCl by mass.
asked by Kelsey G 
Calculus
What are the xcoordinates of the points of inflection for the graph of f(x)sin^2x on the closed interval [0,pi]?
asked by Angela 
physic
one airplane travels due north at 300 km/h while another travels due south at 300km/h. select the false statement.
asked by mary 
English
1.With a cool, silent determination (that seemed to be instinctive), the kitten stalked and pounced on the ball of the yarn. 2.The fans were cheering (as though they had just won the national championship). 3.(As the sun set), a feeling of peace came over
asked by Tracy 
english
metaphors for sports
asked by katy 
math
the number of pages is a 2digit number. the number of photos on a page is a 1 digit number. the number of pages is 60 more than the number of photos on a page. the number of pages is divided by the number of photos on a page is 16. What is the number of
asked by Chris 
Math
a rectanglar prism has a volume of 48 cubic feet and a surface area of ** square feet. What are its dimensions?
asked by Mally 
algebra 2
Find the xintercept and the yintercept of the graph of: 4x2y=8 a. (2, 4) b. 4;2 c. (4, 2) d. 2;4 I'm stuck between a and d. anyone helpp?
asked by sonya 
Astronomy
Which of the following distance measuring techniques works to measure distances to other galaxies beyond the Milky Way? CHECK ALL THAT APPLY A) Hubble's Law B) main sequence stars C) Cepheid variable stars D) parallax E) radar ranging F) galaxy rotation G)
asked by Dre 
physics
Posted by sandhu on Tuesday, November 30, 2010 at 1:17am. A T is made of two identical 740 g thin solid rods. The moment of inertia of the T about an axis perpendicular to the screen through point at one end of a rod is determined experimentally to be 0.68
asked by sandhu 
PHYSICS
A .01kg bullet traveling at 800m/!@#$%^&s a disk with a radius of R=.1m at R/2 and leaves with a speed of 400m/s. what is the angular speed of the disk right after? (omega) I used conservation of momentum and the rotational inertia for a disk and found
asked by Taylor 
economics help
I need a specific article that deals with monopoly power, either regulated or illegal attempts at monopolization.
asked by tom 
Spanish
would "tomar algo" mean to take something and to drink? or would to take something = tomar
asked by Amy 
collage physics
a block of wood rest on a plane incline at 35 degrees to the horizontal.if the coefficient of the static friction between the surface is 0.45.determine: a) what is the horizontal force that must be applied to the block to initiate motion up the plane b)the
asked by troy 
Science
A ball dropped from a height of 125 m takes 5 s to hit the ground and is traveling at the rate of 50 m/s when it hits. After 3 seconds, the ball travels at a rate of ___? After 4 seconds?
asked by Malou 
math
(5x5)+21 =
asked by julie 
Math please help
Let s and t be any two whole numbers, excluding 0. True or False The statement s/t = t/s is always true? and What did you do first to answer this question?
asked by Jenni 
math
the difference of a cirumfrence and diameter of a circle is 120m what is the area in square meters
asked by giridhar 
3rd grade
In doing alphabetical order which of these words com first?its or it's
asked by Anonymous 
math
What is 95 times 18
asked by sarah 
math
there were 93 students going to a nature camp. after equal groups of fewer than 10 students were formed for hiking, 2 students were left over.how many equal groups were formed?
asked by Anonymous 
Spanish
How would I say "He looks at art." Thank you
asked by Anna 
english
what are some websites that can answer my questions and also if you this please help me. The question is "What can you suggest to community as a way to act locally while they think or worry about global descisions? Thank YoU!
asked by Aliyah 
algebra 2
3. Identify the range of y=x4 A. [xx≥4] B. [yy≥4] C. [yy≥0] D. all real numbers I'm confused about this question, any help???
asked by sonya 
English
1.Road crews are making repairs on Willow Street, (where Jeremy lives). 2.According to some people, (when the sky is red in the evening), the weather will be nice the next day. Tell if the clause in () is adj or adv clause. 1.adj 2.adj
asked by Tracy 
geometry
A RHOMBUS HAS ONE ANGLE THAT MEASURES 40 DEGREES AND A PERIMETER OF 100 FEET WHAT ARE THE MEASURES OF THE REMAINING ANGLES
asked by JOHN 
physics
a 145g baseball is thrown up at 40 m/s. after traveling a distance of 50m in the air, the baseball is caught. the ball experienced air resistance of what magnitude?
asked by Kiddo 
English paragraph
Considering the fact that I am a survivor of a relatively traumatic car accident, I am exceedingly cautious when it comes to driving and am advocate for doing anything to improve the well being of our community on the road. A significant problem relating
asked by fdgjfdkgjfdkg 
physics
a 145g baseball is thrown up at 40 m/s. after traveling a distance of 50m in the air, the baseball is caught. the ball experienced air resistance of what magnitude?
asked by Kiddo 
social studies
Based on how compelled is used in this sentence"My father was anxious to see me develop into a good man..{so} he compelled me to memorize all of Homer", what do you thinks it means? A. asked B.taught C.forced or D.dared? I think the answer is C.forced my
asked by Reed 
Math
A ladder is two feet longer than the height of a certain wall. When the top of the ladder is placed against the top of the wall, the distance from the base of the ladder to the bottom of the wall is equal to the height of the wall. How high is the wall?
asked by Naomi 
Physics Help PLEASE!!!
What approximate change in decibels does an observer experience form a sound source if the observer moves to a new location that is 67% as far from the source? 23 23 40 2.76 2.76 1.94 1.94 2.57 2.57 0 do I multiply .67 times 10 log .67?
asked by Jael 
stats  URGENT!!!!
the following sample observations were randomly selected: x: 2,5,6,8,9,11,15 y: 22,23,16,18,19,13,12 a)calculate the correlation coefficient, r b) determine the regression equation c) determine the value of Y when X=20
asked by skitter 
algebra
2(x+4)=48
asked by tony 
chemistry
need help figure out how to do these problem: 1)Calculate the pH of this solution: 1.55 X 10^2 M HBr 2)Determine the pH of this solution: pOH = 8.3 thanks
asked by amy 
english
i have to make analogys for my vocab words and i need help apex:peak;________:__________ Assimilate:_____;_______:_________ interim:interval;_____:_______ and also for Meander,metropolis,momentous,obstrepous,pensive perilou'shoddy,surly,and tirade
asked by kayla 
American Government
I really need help on this journal activity. In this assignment, you are to take each of the purposes form a more perfect union, establish justice, insure domestic tranquility, provide for the common defense, promote the general welfare, and secure the
asked by Cassandra 
Math
Tina can drive 46.8 miles on $6 worth of gasoline. Write a proportion(equation) that can be used find x the number of miles she can drive on $25 worth of gasoline.
asked by Jenni 
Geometry
How do you prove that the sum of distances to a point from the interior of an equilateral triangle is equal to the height of a triangle, therefore it is invariant and that a parrallelogram's angular bisectors from a rectangle.
asked by Desmond 
chemistry
how do I write this equatio out and is it stoichiometry problem. Find the mass of sodium hydroxide needed to neutralize enough nitric acid to create 2.0 gram of sodium nitrate?
asked by Tosha 
f.u.t minna
the period of a simple pendulum(T) depends on a mass of the bulb(M) length of the tred(L) and acceleration due to gravity(g) use the method to find the expression for the of oscillation(T).
asked by akeem 
Physics
i have to build a enery effiecient vehicle for class and do a opapp paper and i need help im so confused.... any ideas?
asked by bobbi..HELP IM SO CONFUSED 
physics
can someone answer my question that i posted below?
asked by bobbi..HELP IM SO CONFUSED 
Math
Tina and her sister evenly split a $10 lottery winning. If tina promised to give her brother 1/4 Of her share, what fraction of the original $10 did she give her brother?
asked by Bill 
chemistry
a compound containing only carbon and hydrogen consists of 362 g of C and 30.1 g of H. what is the empirical formula of the compound?
asked by Lynn 
writing process part 2
i need help on writing an eight sentence paragraph. i get a great idea(thought)about what to write and when i do start writing i freak out and go blank.
asked by kat 
chemistry
hydrogen gas is collected in a bottle, and the pressure of the gas is 892 torr at 24 °C. what is the pressure of hydrogen gas when the temperature decreases to 20 °C?
asked by Lynn 
chemistry urgent
if 500 ml of HCl solution is needed to react with 2.43 g of Mg, what is the molarity of the HCl solution?
asked by Lynn 
math
how do i solve 8 times 493 using distributive property. then draw an array showing work
asked by lisa 
calculus
Jill likes to play Blackjack. She heard about a winning strategy to ensure she does not lose. The strategy is: choose a starting amount to bet, and then double your bet if you lose. Keep doubling your bet until you win. When you win a hand, go back to the
asked by Nic 
Oedipus
What actions show Oedipus wasn't completely good? In the play Oedipus Rex, I need solid evidence of Oedipus' actions that show he was not completely good nor completely evil. I have what I need for reasons he is not completely evil, but to me he seems like
asked by Norah 
edu 310
How has the content and professional standards movement in k12 changed the way education teach students in american?
asked by luly 
chemistry
which of the following is a characteristic of a catalyst? a...can convert an endothermic to an exothermic reaction b...raises the EA c...raises the energy of the reactant(s) d...is recovered unchanged after completion of the reaction
asked by Anonymous 
Calculus
what is Trapezoidal rule? How does it work in finding the area under the curve(s)?
asked by prakash 
Physics
A 60kg parachutist has a PE=70,000J. What is his height?
asked by Ted 
physics
The Cedar Bluff express KAT bus averages 15 mph for 20 minutes, and then 32 mph for 14 minutes. What was its average speed? (mph)
asked by Dan 
physics
an atwood machine is set up with m1=234 grams and m2=485 grams. the height of m2 above the floor is 137 cm, and the system is released from rest. the pulley is frictionless. what is the acceleration of this system? what is the tension in the string? how
asked by Haley 
science
Write a c program (1.Add record 2.Delete record 3.View record 4.Search record) for bike category.?
asked by bappi 
:)
Thank you Dr.Bob222
asked by Tosha 
Math
What is the inverse of f(x) = x^2 − 7, x ≤ 0
asked by jake 
physics
A T is made of two identical 740 g thin solid rods. The moment of inertia of the T about an axis perpendicular to the screen through point at one end of a rod is determined experimentally to be 0.68 kgm2. What is the length of the rods?
asked by sandhu 
Acct
Institutions in the economy that help to match one person's saving with another person's investment are collectively
asked by Jim 
Objects IN motion
Table 2 shows the velocity of an object at different times. Time(s) Velocity(cm/s east) 0  0 5  7.8 15  24.3 20  31.8 35  57.3 ___________________________ K they have given me the velocity for 5 s, 15, etc. but I want to know the velocity for the
asked by Teya 
college
Positive charge is distributed throughout a long nonconducting cylindrical shell of inner radius R and outer radius 2R. At what radial depth beneath the outer surface of the charge distribution is the electric field strength equal to onehalf the surface
asked by fatima 
math
in new jersey compounding interest is prohibited.so whatwould be owed in the case of the business partner giving his copartner a 15000 mortgage at 12%interest and no payments were made in 17 years.
asked by martin sostre 
Biology
A baby born without the ability to produce immune system cells may survive for several months, even when exposed to potentially deadly diseases. How?
asked by Bee 
physics
a mass m1 moves along the xaxis with velocity of magnitude v0 on a frictionless table. it strikes another mass m2 which is initially at rest. the mass m1 goes off along the the yaxis. if half the original kinetic energy is lost in the collision, with
asked by shamrakh 
10th grade
as you are driving your car on the freeway, your tires are rotating at a rate of 920 revolutions per minute. The diameter of each tire is 24 inches. What is the total feet traveled per minute?
asked by kathy 
Physics
A 100.0 meter long transmission cable is suspended between two towers. If the mass density is 2.00 kg/m and the tension in the cable is , what is the speed in m/s of waves on the cable?
asked by Alex 
geometry
a regular hexagon is inscribed in a circle. The radius of the circle is 18 units. What is the area of the region bounded by the inside of the circle and the outside of the hexagon. Round your answer to the nearest hundredth.
asked by suzy 
MATH
Misty uses 3/4 of a bag of noodles when she makes a cartain casserole. What is the greatest number of casseroles she can make from 6 1/4 bags of noodles?
asked by Bill 
English
How do you pronounce "Beatrix"? Is it a male name or a female name?
asked by rfvv 
PHILOSOPHY
Is a person more than a physical body? What is the mind? What is thought?
asked by Rochelle 
chemistry
Why is the pH at the endpoint of the titration of a weak acid by NaOh greater than 7.0?
asked by Anonymous 
english
"Yes, I made an important medical discovery. But I couldn't have done it without my team," said Dr.Jones. What's a word that discribes the sentence above?
asked by thalia 
Math
What is the complete factored form of the following polynomial? 15j^3+30j^2 A)5j(3j^2+6j) B)15(j^3+2j^2) C)5(3j^2+6j) D)15j^2(j+2)
asked by Bryson 
Language (gerunds)
Fielding a pop fly on a sunny day can be a tricky play. I'm having a hard time... I know: on a sunny day is prep phrase can be verb tricky adj play do fly noun is fielding a gerund? would it be used as the subject?
asked by michael 
chemistry urgent
hydrogen gas is collected in a bottle, and the pressure of the gas is 892 torr at 24 °C. what is the pressure of hydrogen gas when the temperature decreases to 20 °C? chemistry  DrBob222, Tuesday, November 30, 2010 at 1:25pm (P1/T1) = (P2/T2) Dear Dr
asked by Lynn 
algebra1
(w9)*(w4) im really struggling ppl plz help
asked by josh 
chemistry
to find the molarity of an aqueous solution of an ionic solid what do you need to know? a... mass of solid, formula of solid, volume of water b...moles of solid, formula of solid, volume of water c....mass of solid, formula of solid, volume of solution
asked by Anna 
physics
An object accelerates uniformly from rest at a rate of 2 m/s2 for 3 s and then 5 m/s2 for 15 s. Find its final velocity?
asked by Anonymous 
chemistry
most salts are more soluble in water at higher temperatures than at lower temperatures but not all. What are two exceptions? Explain how these salts can be less soluble at higher temperatures.
asked by Anonymous 
chemistry
which of the following salts do you expect to have the lowest water solubility? a...SrF2 b...Rb2O c...Ga2O3 d...CsNO3 All the numbers are subscripts
asked by Anna 
geometry
we are a team of students studying for a test  asking again  thanks  An arc ABC is one quarter of a circle with center B and radius 6. Rectangle EDFB is inscribed in ABC. If ED + DF = 8, find the perimeter ADCFE. Round your answer to the nearest
asked by antonne 
math
Solve for x. 3x  8 + 6x = 7
asked by josh 
4th grade
How can you show without multiplying that 4/9 is greater than 0.4?
asked by lost 
Physics
What would the gauge pressure be on a diver in atmospheres if she could dive to a depth of one km in sea water? One atmosphere is 1.01 X 10^5 N/m2. The density of sea water is 1.03 X 10^3 kg/m3.
asked by Alex 
Chemistry
What is the pH when 25 mL of .20 M CH3COOH has been titrated with 35 mL of .10 M NaOH? I got the answer .0375 but that is incorrect if you could show me steps maybe i can figure out what i did wrong thanks
asked by Mya 
soc
Read the case study, Culture at WalMart on pg. 68. Western companies often impose western culture on the country in which the business is launched. Locate an article that contains a similar situation as WalMart and summarize the findings.
asked by Jan 
Math
Laura takes a random survey of the students in her school. Of the 48 students asked, 16 plans to go to the football game. There are 231 students in her shcool. What proportion can she use to find s the total number of students expected to attend the game?
asked by Bill 
Chemistry
The solubility of calcium sulfate at 30 degrees C is .209 g/100mL solution. Calculate its Ksp i calculated it and got 1.5 x 10 ^2 but the program said that it was wrong if you could help explain how to do it i would appreciate it
asked by Joe 
Chemistry
What is the maximum [Ba^2+] that can be maintained in 1.100 L of a 030 M solution of Na2SO4?
asked by Jeremy 
Chemistry
Determine the amount of potassium chloride in each of the following solutions: 22.2kg of a solution containing 17.2% KCl by mass.
asked by Kelsey G 
math
what is the area and perimeter of 1.7*4
asked by ashley 
biology
what is cell history
asked by karina 
5th grade math
100cm=1m How many square cm = one square meter? 6 1/8  x = 1 7/8 ? would that be 4 1/8 Thank you so much for your help.
asked by jill 
word processing part 2
It has to be 8 sentences, Can someone help me out and correct me? Alcohol (ethanol) impairs your judgment and depending on your size and tolerance, you can do some substantial damage. When you are behind the wheel, it is your responsibility just as much as
asked by jackie rios 
chemistry
if C6H12O6 > 2 C2H5OH + 2 CO2 represents the fermentation of sugar to produce alcohol, and the reaction is only 40.0% efficient (% yield), what is the actual yield of alcohol from 454 g of C6H12O6
asked by lianne 
business law
Case study Lola Langston decides to make it rich by forming a general partnership with her friend Irvine and opening up gogo dancing bars with females and males dancing on a stage in “skimpy” clothing. The first bar is in the town of Bugtussle and
asked by Alex 
Texas History
What mexican actions led to further conficts with settlers? It was around 1830
asked by Brit 
Chemistry
A 335 mL can of soda pop is found to contain 40 g of sucrose (C12H22O11). What is the molarity of the solution with respect to sucrose?
asked by Kelsey G 
Algebra
Find two consecutive even intergers such that the square of the smaller is 10 more than the larger.
asked by Anonymous 
Statistics
McMaster University researchers Margo Wilson and Martin Daly showed 209 male and female students pictures of attractive and notsoattractive people of the opposite sex. Each was then offered a chance to win a prize. They could accept a check for between
asked by Mandy 
6th grade
explain how there can be more heat energy in an iceberg than in a pot of boiling water
asked by Anonymous 
Health
Describe the path that food takes from the time you ingest it until it is eliminated from the body?
asked by MR 
chemistry urgent
if 100 g of iron were reacted with 100 g of oxygen according to the reaction below, the maximum yield in grams of Fe2O3 would be: chemistry urgent  bobpursley, Tuesday, November 30, 2010 at 4:20pm Balance the equation. Note the coefficents on Fe and O2,
asked by lynn 
Chemistry
A sample of oxygen gas has a volume of 8.00 L at 20.0 ° C and 700. torr. How many moles does the sample contain?
asked by Kiesha 
chemistry
Imagine that one carbon in buckminster fullerene (C60) is replaced by a silicon atom,yielding SiC59. This molecule can then orient in 60 different ways. What is the entropy of one mole of SiC59 at T = 0 K? 1. 4.53 × 10−20 J/K 2. 27.3 kJ/K 3. 34.0 J/K
asked by Bob 
Physics
A 70 kg man just before contact with the ground has a speed of 5 m/s In a stifflegged landing he comes to a halt in 7ms (miliseconds). Keeping in mind that the average net force acting on the man includes both the force of the ground on the man and the
asked by Kevin 
physics
A ball has an initial velocity of 22.0 m/s but is accelerating at a rate of 1.0 m/s squared. After it has traveled 25.0 meters what is its new velocity? The answer is 20.8 m/s squared. I don't no how my teacher got that answer. please help as soon as
asked by Trista 
English
I'm reading Thoreau's "Where I lived and What I lived For"Solitude and Conclusion." I don't understand how to answer this question. What does he compare man and his life to? Thank you
asked by Julie 
science
If one parent has AB and one parent has O blood types, what are the possibilities of blood types for their children
asked by laura 
12th grade English
I need help i have to have a literary term for ch. 1,2,3,5,12,13,14,16,and 26 im having trouble figuring out how to do that so can somone help me please
asked by Brittany 
statistics
CALCULATE THE PERCENTAGE OF CASES THAT FALL BETWEEN THE SCORES 120 AND 110 ON A NORMALLY DISTRIBUTED iq TEST WITH A MEAN OF 100 AND A STANDARD DEVIATION OF 10
asked by ROXIE 
Constant acceleration
How is constant acceleration shown on a velocitytime graph? Isn‘t it shown as a straight line rising upward?
asked by Teya 
Chemistry
I wanted to find out what the difference is between acetic acid and boric acid and how they relate to the LaChatelier's principle.
asked by Colleen 
Calculus
Find all points on the graph of f(x)=xe^x at which the tangent line is parallel to the line y3x=4. i figured out that f'(x)=3 but i don't know what to do with that.
asked by Leanna 
ela
can you give me an example of classical allusions please but from romeo and juliet
asked by anu 
6th grade
A duck is 17 feet below the surface of a lake. The duck begins to head to the surface at a rate of 3 feet per second. Write an expression to describe the duck's position after s seconds?
asked by Wilson 
english
We have a worksheet that says classify eash sentence.. What does that mean?
asked by kesha 
child care
children with special needs should
asked by sara 
1st grade
how many miles does the earth travles a minute or second ????
asked by lele 
english
is anyone know what an anology for meander be?
asked by HELP URGANT! 
HCA 220
I need help on storyboard presentation that is due tonight, need a draft and final that is due on sunday. Not to sure how to start it off
asked by Sharon 
Physics
A ball thrown horizontally at 18.3 m/s from the roof of a building lands 36.3 m from the base of the building. How tall is the building?
asked by Chris 
help! physics
Two masses (m1 = 532 grams, m2 = 114 grams) are connected with a rope through a frictionless pulley The ramp has an elevation angle θ = 65.3° and a coefficient of friction μ = 0.184. What are Fll and Fperpendicular for m1? What is the normal force on
asked by Haley 
Chemistryconfused
What is the molarity of a 15%(w/v) solution of nickel (III) ferrocyanide? I can't figure out what nickel(III) ferrocynade is?
asked by Beth 
hcs 533
What are the various types of health care information structures/systems and why are they important?
asked by keisha 
edu
What do you believe will be the future of American k12 education and how will you make an impact on it?
asked by luly 
social studies
information about landform
asked by abby 
Chemistry
Molarity of 350ml of HCl?
asked by Anonymous 
ethics
If you are an employee of a business, and learn that it is violating the law, what would you do in this situation? What are your ethical obligations? Under what conditions would you report the illegal activities? Under what conditions would you keep quiet?
asked by Anonymous 
childcare
when working with special needs/learning disabled children,caregivers should a.provide positive role models for them. b. ignore their disabilities. c. try to do as much as possible for them. d. instruct other children to disregard them. i think is a
asked by sara 
english
how do a write a paragraph on how i plan to obtain my goal as a Doctor?
asked by Natasha 
childcare
exam 00383001 need help withj 5 questions
asked by tiffany 
chemistry
what can we say about the EA for an exothermic reaction? a...must be
asked by Anonymous 
Physics
If you are given numerous envelopes that contain an unknown amount of "tiles" and are given the mass of each of those envelopes,how might you determine the mass of just one tile?
asked by Jordge 
Chemistry
A mixture of 6.50 g He and 37.0 g Ne has a pressure of 610. mm Hg. What is the partial pressure of each of the gases?
asked by Chantz 
3rd grade
i am a number between 1 and 5. you can make exactly 3 arrays with me. who am i?
asked by naomi 
physics
What is the apparent weight of a 36 kg block of aluminum (density 2700 kg/m3) completely submerged in a fluid with density 1300 kg/m3?
asked by kate 
microeconomics
Consider two firms X and Y produce identically tasting cold drinks. In order to increase the demand for its cold drink, firm X increases its advertisement outlay. However the advertising doesn’t increase its demand in the long run. Explain why this must
asked by mary please check for accuracy. 
child care
one of the most important functions of a childs peer group is a. serving as a replacement for the parents. b.providing opprtunities for competition. c. fostering love and understanding. d. teaching about the world outside the family.
asked by sara 
SCIENCE
WHAT IS THE AVERAGE SPEED OF A BALL FALLING FROM THE HIEGHT OF 125 METERS AT THE SPEED OF 5 SECONDS TO HIT THE GROUND IN METERS PER SECOND?
asked by SPARK 
math
Use a table of values to graph the equation. solve for y x= 1,0,1 y= y=2/3x+6
asked by Hannah 
chemistry
Find the mass of sodium hydroxide needed to neutralize enough nitric acid to create 2.0 grams of sodium nitrate? How do I write out equation and solve?
asked by Tosha 
math
How do i do mixed numbers to improper fractions.
asked by kelsey 
Physics
A series of waves traveling at 200m/sec are being generated by a 100 Hz source. A point at the very top of the crest of a certain wave is _______ meters from a corresponding point 3 'crests' away. 0 1.5 2.7 4 6.0 12.0 16.0 30000
asked by Kristina 
physics
A .01kg bullet traveling at 800m/!@#$%^&s a disk with a radius of R=.1m at R/2 and leaves with a speed of 400m/s. what is the angular speed of the disk right after? (omega) I used conservation of momentum and the rotational inertia for a disk and found
asked by Taylor 
Math
What kind of graph is two circles put together called?
asked by savannah 
sequence algebra
find the n th term uf the sequence 3/2 6/4 9/5 12/6 15/7
asked by dunstan 
math
what is the answer 0.5 divide 0.55 and the top of the diveded was 11
asked by izzy 
Physics
A gas is taken though a single process in which its volume decreases by .25 m^3 as the temp of the gas rises 2deg C. Which of the following people are more likely to have reached the correct conclusion? a. Bob Identifies this process as adiabatic b. Jill
asked by Joel 
chemistry
Relative to pure water, what can you expect for the solubility of AgF in .10 M Hcl? Explain please....
asked by Anonymous 
math
Which of the following shows how the Distributive Property could be used to simplify 7(28)? F 7 • 2 • 8. G 7 • (20 • 8). 7 • (20 8). J (7 • 20) 8 ...
asked by Anonymous 
Science (6th grade, but actual 7th grade paper)
We are learning about potential and kinetic energy. There are two ramps. One is short and the other is long. The long one is labeled A, and the short one is labeled B. On which one would a marble go the farthest after touching the ground?
asked by Needs Help 
Math
Bob wants to buy cards with $20. Each card cost between $1.80 and $2.25. What is the maximum number of cards he can buy?
asked by Bill 
geometry
the measure of x is greater than four times the measure of a supplement to it. is this possible? if so, graph the possibilities for c on a number line. if not, explain why not.
asked by Carly 
Math
Let s and t be any two whole numbers, excluding 0. True or false. The statemnt s/t = t/s is always true? What did you do first to answer this question?
asked by Jen 
math
how to rewrite in symbols: the perimeter of a square p is 4 multiplied by the length of a side L
asked by ursula 
math
what type of math problems exemplify the different purposes of variable, and in what way do these different uses of variable can be confusing?
asked by sandra 
math
how to rewrite rule in symbols: At a certain time of day,the length of a shadow s cast by an object is twice the length of the object L
asked by ursula 
math
how to rewrite rule in symbols: At a certain time of day,the length of a shadow s cast by an object is twice the length of the object L each length h in a copy 1/100 the length k in the original
asked by ursula 
math
how to rewrite rule in symbols: At a certain time of day,the length of a shadow s cast by an object is twice the length of the object L each length h in a copy 1/100 the length k in the original
asked by ursula 
Calculus
Find all points on the graph of f(x)=xe^x at which the tangent line is parallel to the line y3x=4. i figured out that f'(x)=3 but i don't know what to do with that.
asked by Leanna 
Chemistry
how does the outer energy level relate to the ionization energy?
asked by Sandy 
language (gerunds)
Marie's favorite event is swimming. swimming is the gerund and I think that it is used as either a DO or a predicate nominative. I'm leaning toward PN because it renames the event?
asked by michael 
algebra
what is the answer to this problem g+3/5=21
asked by Jalaya 
geometry
we are a team of students studying for a test  asking again  thanks  The distance between Sue and a dude ranch was 30 mi. straight accross a rattlsnakeinfested canyon. Instead of crossing the canyon, she hiked due north for a long time and then hiked
asked by antonne 
language (gerunds)
Thank you to Ms. Sue and writeacher for all of your help, I GET IT!!!
asked by michael 
physics
Im confused! How would you calculate the work done by a plane? I know work= f d, i just don't know how to get the force and distance!
asked by Maddi 
Physics
A 10kg particle undergoes simple harmonic motion with an amplitude of 2.0mm, a maximum acceleration of 8.0x10^3 m/s^2, and an unknown phase constant (phi) What are: a.) the period of the motion b.) the maximum speed of the particle c.) total mechanical
asked by Greg 
science 6 grade
what special molecule contains the cell's genetic material
asked by rebecca 
Biology
What is the lumen of the human digestive system?
asked by Emily 
Chemistry
what is the outer energy level for beryllium?
asked by Sandy 
geometry
If the sides of a triangle are in the ratio 3:4:5 and the perimeter of the triangle is 72 inches what are the lengths of the sides?
asked by Debbie 
criminal justice
what are 2 major influencing factors and how dose federal sentencing guidelines have an effect on these influences
asked by DJ 
HCA 220
I have to have a draft for my power point that is due in couple hours. Can anyone help. It has to be storyboard presentation
asked by Sharon 
math
The game has 12 3min rounds. If the player stops after 2min in the twelfth round How many min did he play? I want to say it would be 35 but I know that they play 36 min so is it 34 or 35?
asked by Anonymous 
5th grade
what are some features geographers can use to define a region?
asked by lily 
Chemistry
A 3.0 L sample of a 5.8 M NaCl solution is diluted to 65 L. What is the molarity of the diluted solution?
asked by Kelsey G 
Chemistry
How much of a 6.0 M sucrose solution should be used to make 81.0 mL of a 0.055 M solution?
asked by Kelsey G 
Pre Calc
Simplify and show work step by step cos²θ + sin² = ???
asked by Huh 
math
compare 63 and 48
asked by reeve 
geometry
if arc BC is 42 degrees and angle 5 is 32 degrees what is the measure of arc DE?
asked by jasmine 
5th grade math
Using the butterfly method, which fraction is less 1/4 or 1/3  I know the answer but using the butterfly method the answer does not work out? Am I doing something improper? Thanks!
asked by Diana 
math
what were the headlines after a mad scientist trained two eggs to attack a candy store with sharp sticks
asked by tia 
math
George has enough fencing to enclose 2400 square feet around a circular pool. If he builds a circular fence and he wants 12 foot walkway around the pool, what is the largest pool diameter possible?
asked by carmie 
Math
Let s and t be any two whole numbers excluding 0. True or false. The statement s/t = t/s us always true? what did you do first to answer this question?
asked by Jenni 
ethics
The medical profession: how does that industry serves society and how we react to changes in that industry's standards and practices?
asked by Anonymous 
childcare
an appropriate science activity for an infant would be: a. weighing and measuring other infants. b. planting a flower. c.feeling different textured objects. d.caring for pets of the facility.
asked by sara 
biology
how would hydrogen ions and hydroxide ions be attracted to intact water molecules
asked by haunnah 
algebra
Having problems with the FOIL for the problem below (5x^85)(x^94). My answer is 5x^1720x5^920. please let me know if this is correct. if not correct can you show me what i need to do?
asked by Donni 
10th grade english
what is a one sentence summation of plot
asked by carla 
material science/ chemistry
why are metals so apt to corrode while polymers are immune to corrosion?
asked by jenny 
Algebra 1
A(1,30),B(4,15),C(14,39) Are the three points collinear?
asked by Anonymous 
PHYSICS
A 3kg mass is observed to accelerate 20m/s^2, 20 (degrees). Two forces act on the object. One force is 4.5N, 45 (degrees). Find the other force.
asked by CHRISTIE 
ethics
The medical profession: how does that industry serves society and how we react to changes in that industry's standards and practices?
asked by Anonymous 
MATH
Tina and her sister evenly split a $10 lottery winning. If tina promised to giver her brother 1/4 of her share what fraction of the original $10 did she give her brother?
asked by Bill 
child care
which of the following is an obstacle to learning for a begininning mover?
asked by Shannon 
chemistry
Your task is to produce 175mL of carbon dioxide. You many use anything in class.
asked by Haley 
ChemistryEmergency
What is the molarity of a 15% solution of Ni3Fe(CN)6?
asked by Beth 
math
how to rewrite in symbols each length h in a copy 1/100 the length k in the original
asked by ursula 
english
how does dialogue help you move forward
asked by branden 
child care
the goal of thomas behavior appears to be
asked by sara 
sewing
What is a wood clap used for in sewing ? thank you
asked by me 
Chemistry
Calculate the concentration of the solution in mass percent: 32.3 mg KNO3 in 2.44g of H2O.
asked by Kelsey G 
Chemistry
Determine the amount of potassium chloride in each of the following solutions: 44mg of a solution containing 15% KCl by mass.
asked by Kelsey G 
art
HUYT RED ESDR EN ENGLISH PLEASE
asked by OLIVE 
physics
An EF 151 GTA sits on the EF stool and rotates CCW with an initial speed of 60 rpm. After 28 revolutions he stops. Assuming constant acceleration, how long was he rotating?
asked by sandhu