Questions Asked on
October 20, 2010

spanish
Querida Beth: 1) (blank) esta todo bien y esperamos que 2) (blank) tambien lo este. 3) (blank) lo pensemos y lo conversemos, tu padre y yo no estamos contentos con tu viaje. 4) (blank) en nuestras vidas estamos muy preocupados porque creemos que eres mu
asked by kyle 
3rd grade
Can you divide 14 shirts into 2 equal groups?Why or why not?
asked by Elijah 
L.A
I'm trying to find the theme of the book I'm reading, but I don't really know what exactly is a theme, could anyone give me an idea of what a "theme" of a story is? Is the theme = What is the author trying to teach us? Or is it the central message of the
asked by Shadow 
physics online
Assuming that Albertine's mass is 60.0 , what is , the coefficient of kinetic friction between the chair and the waxed floor? Use = 9.80 for the magnitude of the acceleration due to gravity. Assume that the value of found in Part A has three significant
asked by baby 
Chemistry
Calculate q when 0.10 g of ice is cooled from 10 degrees C to 75 degrees C (C ice= 2.087 J/ g* K)
asked by Mai 
Chemistry
Which species will reduce Ag+ but not Fe2+? 1. H2 2. Cr 3. V 4. Pt 5. Au
asked by Sarah 
grammar
To no ones surprise, Joe didn't have his homework ready. A. no ones surprise B. noones surprise C. noones surprise D. no ones' surprise E. no one's surprise I put A but it was wrong and I don't know why?
asked by john 
social studies
What is an example of HumanEnvironment Interaction in Vatican City?
asked by Hannah 
math
an aquarium holds 6 1/4 gallons of water. the water level has dropped to 4/5 of this amount. how much water should be filled?
asked by veronica 
chemistry
CuCl2(aq) and Na2CO3(aq) are mixed.Write the balanced equation for the process.
asked by Bonnie 
chem
A lead fishing weight with a mass of 57 g absorbs 146 cal of heat.If its initial temperature is 48^C, what is its final temperature?
asked by Anonymous 
chemneed help, please!!!
Ka for benzoic acid, C6H5COOH, 6.5x10^5. Calculate the pH of solution after addition of 10.0, 20.0, 30.0, and 40.0 mL of 0.10 M NaOH to 40.0 mL of 0.10 M Benzoic acid. PLEASE CHECK MY ANSWER!!!!! My answer is: Moles acid = 0.040 L x 0.10 M = 0.0040 Moles
asked by Andy 
Finance
Mary needs $9000 in 7 years. What amount can she deposit at the end of each quarter at 6% interest compounded quarterly so she will have her $9000?
asked by Lacey 
physics
A 25 rifle bullet traveling 280 buries itself in a 3.8 pendulum hanging on a 3.0 long string, which makes the pendulum swing upward in an arc. Determine the vertical and horizontal components of the pendulum's displacement.
asked by Keta 
Stat College
what proportion of a normaql distribution is located between each of the following z score boundaries? a. z= 0.50 and z = +0.50 b. z=  0.90 and z= +0.90 c. z= 1.50 and z= +1.50 How will I know the question has been answered
asked by John 
Physics
On a planet that has no atmosphere, a rocket 14.2 m tall is resting on its launch pad. Freefall acceleration on the planet is 4.45 m/s2. A ball is dropped from the top of the rocket with zero initial velocity. (a) How long does it take to reach the launch
asked by Maria 
CHEM
One piece of copper jewelry at 101°C has exactly twice the mass of another piece, which is at 36.0°C. Both pieces are placed inside a calorimeter whose heat capacity is negligible. What is the final temperature inside the calorimeter (c of copper = 0.387
asked by Cory 
chemistry
which is greater, the energy of one photon of orange light or the nergy of one quantum of radiation having a wavelength of 3.36X10^9m ?
asked by Raynique 
Physics
A 520 N cat burglar is supported by cables in the figure below. Assume the angle θ of the inclined cable is 32.0°. Find the tension in each cable. (Inclined, vertical, and horizontal)
asked by Diana 
Chemistry
A 30.5 g sample of an alloy at 93.7°C is placed into 50.1 g water at 23.4°C in an insulated coffee cup. The heat capacity of the coffee cup (without the water) is 9.2 J/K. If the final temperature of the system is 31.1°C, what is the specific heat
asked by Megan 
Chemistry
When 32.0 mL of 0.560 M H2SO4 is added to 32.0 mL of 1.12 M KOH in a coffeecup calorimeter at 23.50°C, the temperature rises to 30.17°C. Calculate H of this reaction per mole of H2SO4 and KOH reacted. (Assume that the total volume is the sum of the
asked by Megan 
Chemistry
calculate the empirical formula. A chemist heats 50.00g of sulfur under controlled conditions to produce a sulferoxygen compund.The mass of the sulfuroxygen compound is 100.00g. What is the empirical formula of the sulfuroxygen?
asked by Ash 
Finance
Gretta wants to retire in 13 years. At that time she wants to be able to withdraw $12,500 at the end of each 6 months for 10 years. Assume that money can be deposited at 12% per year compounded semiannually. What exact amount will Gretta need in 13 years?
asked by Katie 
Organic Chemistry
What would happen to the caffeine if the sublimation step were performed at atmospheric pressure?
asked by Tammy 
physics
1.)The apparent weight of a passenger in an elevator is greater than his true weight? Why is that? 2.) The radius of larger circle is twice that of a small circle. Two identical stones are attached to cords that are being whirled on a table top at the same
asked by jo 
Word Problem
It is necessary to have a 40% antifreeze solution in the radiator of a certain car. The radiator now has 60 liters of 20% solution. How many liters of this should be drained and replaced with 100% antifreeze to get the desired strength?
asked by Ford 
physics
A 1.9 kg block slides down a frictionless ramp, as shown in figure 828. The top of the ramp is 1.5 m above the ground; the bottom of the ramp is .25 m above the ground. The block leaves the ramp moving horizontally, and lands a horizontal distance d away.
asked by tony 
chemistry
A 1.25g sample of dry ice is added to a 750ml flask containing nitrogen gas at a temperature of 25.0 C and a pressure of 725mmHg. The dry ice is allowed to sublime (convert from solid to gas) and the mixture is allowed to return to 25.0C. What is the total
asked by Anonymous 
English
How do the Native Americans respond to the Spaniards in the first encounter between the two groups?
asked by Chante' 
Chemistry
Aluminum is more reactive than iron, yet it is used today for a variety of applications in which iron would corrode (cans, rain gutters,etc). The reason for the corrosion durability of aluminum is 1. all aluminum products are treated with a plastic
asked by Sarah 
College Chemistry
"A student weighs 0.347 g of KHP on a laboratory balance. The KHP was titrated with NaOH and the concentration of the NaOH determined to be 0.110 M. For the second titration, the student correctly diluted 6 M HCl from the reagent shelf using a graduated
asked by James 
physics
You are watching an archery tournament when you start wondering how fast an arrow is shot from the bow. Remembering your physics, you ask one of the archers to shoot an arrow parallel to the ground. You find the arrow stuck in the ground 50.0 m away,
asked by sagi 
chemistry
A 1.25g sample of dry ice is added to a 750ml flask containing nitrogen gas at a temperature of 25.0 C and a pressure of 725mmHg. The dry ice is allowed to sublime (convert from solid to gas) and the mixture is allowed to return to 25.0C. What is the total
asked by Anonymous 
math
When I was considering what to do with my $10,000 Lottery winnings, my broker suggested I invest half of it in gold, the value of which was growing by 11% per year, and the other half in CDs, which were yielding 4% per year, compounded every 6 months.
asked by Priscilla Pina 
Geography
what is the difference between great siberian plains and lowlands of central asia
asked by Anonymous 
consumer math
the hamilton brush company issued 2,500 shares of the common stock worth $100,000.00 total.what is the par value of each share
asked by Anonymous 
Chemistry
Convert a gas pressure of 485 cmHg to atmospheres. (cm not mm!)Wouldn't you simple convert cm to mm (4850) and divide by 760 mmHg?
asked by lavonne 
physics
what distance does the electromagnetic radiation travel in 50.0 (nu)s?
asked by Dana 
chemistry
orange light has a frequency of 4.8X10^14 S^1. WHAT IS THE ENERGY OF ONE QUANTUM OF ORANGE LIGHT?
asked by Raynique 
Chemistry
a radio station emits radiation at a wavelength of 2.90 m. what is the station's frequenct in megahertz?
asked by Raynique 
chemistry
A sample of hydrogen gas was collected over water at 36 degrees celsius and 855 mmHg. The volume of the container was 6.50 L. Calculate the number of moles of H2 collected. (vapor pressure of water is 44.6 torr at 36 degrees Celsius)
asked by lavonne 
College Chemistry
What is pH buffer of 0.1 mol L1 Na2HPO4/O.15 mol L1 KH2PO4? KH2PO4? Given Ka(H2PO4) = 6.2 x 108). I would like to know the correct formula, steps for the answer Thank you
asked by Helen 
Math 1320
When I was considering what to do with my $10,000 Lottery winnings, my broker suggested I invest half of it in gold, the value of which was growing by 12% per year, and the other half in CDs, which were yielding 5% per year, compounded every 6 months.
asked by Anne 
Chemistry
The Question Is: "A student weighs 0.347 g of KHP on a laboratory balance. The KHP was titrated with NaOH and the concentration of the NaOH determined to be 0.110 M. For the second titration, the student correctly diluted 6 M HCl from the reagent shelf
asked by James 
math
A segment of a circle has a 120 arc and a chord of 8in. Find the area of the segment
asked by tony 
math
Give a counterexample to show that each of the following generalizations about the set of integers {3,2,1,0,1,2,3} is false. a) closure property for division b) distributive property for division over addition.
asked by m 
Chemistry  College
The fuel value of hamburger is approx. 3.7 kcal/g. If a man eats 0.45 lbs of hamburger for lunch and none of the energy is stored in his body, estimate the amount of water that would have to be lost in perspiration to keep his body temperature constant.
asked by Madalyn 
Physics
From the top of a tall building, a gun is fired. The bullet leaves the gun at a speed of 340 m/s, parallel to the ground. The bullet puts a hole in a window of another building and hits the wall that faces the window. (y = 0.42 m, and x = 7.2 m.)Determine
asked by Anonymous 
Physics
In an accidental explosion, a satellite breaks in half while in circular orbit about earth. One half is brought momentarily to rest. What is the fate of the half brought to rest? What happens to the other half?
asked by ed 
chem
Water (2330 g) is heated until it just begins to boil. If the water absorbs 5.53×105 J of heat in the process, what was the initial temperature of the water?
asked by Anonymous 
Physics
A motorboat is traveling 5m/s East, and encounters a current traveling 2.5m/s, North. If the witdth of the river is 80m wide, how much time does it take the boat to reach the other shore. I understand how to calculate the resulatant velocity, but I don't
asked by Jennifer 
Finance
Find the least amount that could be deposited in a bank account today at 10% compounded quarterly to allow $650 withdrawals at the end of each quarter for 8 years?
asked by Katie 
chem
A 5.0×101 kg sample of water absorbs 312 kJ of heat.If the water was initially at 20.1C, what is its final temperature?
asked by inny 
Physics
A horizontal rifle is fired at a bull'seye. The muzzle speed of the bullet is 745 m/s. The barrel is pointed directly at the center of the bull'seye, but the bullet strikes the target 0.020 m below the center. What is the horizontal distance between the
asked by Anonymous 
Physics
The United States and South Korean soccer teams are playing in the first round of the World Cup. An American kicks the ball, giving it an initial velocity of 4.3 m/s. The ball rolls a distance of 5.0 m and is then intercepted by a South Korean player. If
asked by Maria 
physics
Bill kicks a rock off the top of his apartment building. It strikes a window across the street 12 m away. The acceleration of gravity is 9.8 m/s2 . If the window is 24 m below the position where Bill contacted the rock, how long was it in the air? Answer
asked by Anonymous 
Chemistry
Using the set of smallest possible integer coefficients to balance the redox equation H2O2 +MnO−4 > O2 +Mn+2 (acidic solution), the coefficient for H2O2 is 1. 5. 2. The correct coefficient is not given. 3. 2. 4. 7. 5. 4.
asked by Sarah 
8th grade math
The equation d=3.5t + 50 represents the distance in meters,d, that a cyclist is from his home after t seconds. Which pair of values represents a points on the graph of this equation? Explain your answer. (10,85) (0,0) (3,60.5)
asked by john 
college
When I was considering what to do with my $10,000 Lottery winnings, my broker suggested I invest half of it in gold, the value of which was growing by 12% per year, and the other half in CDs, which were yielding 5% per year, compounded every 6 months.
asked by Anne 
chemistry
If a cetain pressure supports a 256 mm high column of mercury, how high a column of water will it support? The ensity of mercury is 13.6 g/mL. Not completely sure how to work this one, we never reviewed it in class. All the answers to chose from are in
asked by lavonne 
science
a girl delivering newspaper travels 3 blocks west, four blocks north, then 6 blocks east. What is the total distance she travel
asked by lili 
physics
spring has k=82 N/m use a graph to determine the work needed to stretch it from x= 3.8 cm to x=6.2 cm where x is the displacement
asked by brie 
college
How do i calculate the number of equivalents of h2c4h4o4 titrated?
asked by Kaitlyn 
math
Bruce stands on a bank beside a pond grasps the end of a 20.0 m long rope attached to a nearby tree and swings out to drop into the water. If the rope starts at an angle of 36.0 with the vertical what?
asked by Anonymous 
geography
If you are in downtown Chicago and facing north, what direction would you go to get to Lake Michigan?
asked by Faith 
math
A triangle has vertices P(7,7), Q(3,5), and R(5,3). a. calculate the lengths of the midsegmaents b. calculate the lengths of the three side of triangle PQR. c. compare your answers in a. and b. what do you notice
asked by Ted 
Organic Chemistry
Bromination of EStilbene how I need to calculate the theoritical and the % yield? It was 0.20g of estilbene added to 10ml RBF at the end of reaction it was 0.328 gm of product messured.
asked by Tammy 
Physics
An object with mass m1 = 6.00 kg, rests on a frictionless horizontal table and is connected to a cable that passes over a pulley and is then fastened to a hanging object with mass m2 = 8.0 kg, as shown in the figure below. Find the acceleration of each
asked by Diana 
geography
What does this mean? A colony is part of an empire and so colonialism is closely related to imperialism. Colonialism is based on an imperial outlook, thereby creating a consequential relationship between the two. Through an empire, colonialism is
asked by Alania 
Physics
A student stands at the edge of a cliff and throws a stone horizontally over the edge with a speed of 21.0 m/s. The cliff is h = 60.0 m above a flat horizontal beach. A)How long after being released does the stone strike the beach below the cliff? B)With
asked by KC 
Stat 1
Seventy million pounds of trout are grown in the U.S. every year. Farmraised trout contain an average of grams of fat per pound, with a standard deviation of grams of fat per pound. A random sample of farmraised trout is selected. The mean fat content
asked by sam 
Chemistry
If 1.00 L of an unknown gas at STP has a mass of 5.40 g,what is the molar mass?
asked by Cliff 
Chemistry
if you had one mole of m&ms, how many times could you cover the surface of the earth?
asked by Robin 
social studies
what contribution did bartolomeu dias make for portugal
asked by lanaya 
World History
I need definitions for all of these words...THANKS! Deccan Plateau “monsoons” Vedic & Epic Ages Sanskrit RigVeda Mahabharata Ramayana Upanishads “Indian caste system” (Kshatriyas, Brahmins, Vaisyas & Sudras) untouchables Chandragupta Maurya
asked by Anonymous 
Maths
A word made by writing the seven letters used to spell "EXAMPLE" in some order. Find how many different 'words' are possible in each of the following cases. a) The first and the last letter are each "E" b) The two letters "E" are next to each other. c) The
asked by Ismail 
physics
A 6.9kg box is being lifted by means of a light rope that is threaded through a single, light, frictionless pulley that is attached to the ceiling.Lifted at a constant speed of 2 m/s. If the box is lifted, at constant acceleration, from rest on the floor
asked by kate 
math
At Irv's Cycle Rental Shop, Irv renst all knids of cycles: unicyles, tandem bikes, regualr bikes, and even tricycles for little kids. He parks all the cycles in front of the shop with a helmet for each rider strapped to the cycles. This morninf Irv counted
asked by Katherine 
physics
During World War I, the Germans had a gun called Big Bertha that was used to shell Paris. The shell had an initial speed of 1.96 km/s at an initial inclination of 48.2◦ to the horizontal. The acceleration of gravity is 9.8 m/s2 . How far away did the
asked by Anonymous 
Science
From a laboratory process designed to separate water into hydrogen and oxygen gas, a student collected 10.0 g of hydrogen and 70.9 g of oxygen. How much water was originally involved in the process?
asked by Raphael 
Chemistry
You need to prepare 1.000 L (in a volumetric flask) of 0.50 M phosphate buffer, pH 6.77. Use the Henderson Hasselbalch equation with a value of 6.64 for pK2 to calculate the quantities of K2HPO4 and KH2PO4 you need to add to the flask. What concentrations
asked by Anonymous 
chemistry
While on vacation, you notice that a substantial lather fails to form as you wash your hands with soap. a. How do you characterize this water? Why? b. How could this water be treated to remedy this situation?
asked by pinky 
number patterns
joshua is raising fruit flies for a science project.at the begining of the first day,he had 4 fruit flies,his fruit flies double in number each day.how many fruit flies does he have at the end of three days
asked by mona 
Chemistry
4. The electrons surround the nucleus of the atom. True 16. Of the three subatomic particles, the electron is the smallest. True 37. Electrons have almost 0 mass. True? 39. Neutrons carry no electrical charge. True Thanks MC
asked by mysterychicken 
pre calc trig check my work please
sin x + cos x  = ? sin x sin x cos x  +  = sin x sin x cos x/sin x = cot x this is what i got, the problem is we have a match the expression to the equation work sheet and this is not one of the answers. need to figure out what im
asked by Anna 
12th grade
A cubic box of volume 4.0 multiplied by 102 m3 is filled with air at atmospheric pressure at 20°C. The box is closed and heated to 160°C. What is the net force on each side of the box?
asked by Bodi 
C++
1. while(c 0 ) sum = sum + z; 3. x = 1; while (x
asked by Anonymous 
matn
In a roller blade race grant is 5 meters ahead of cathy. mike is 7 meters behind cathy. joey is 4 meters ahead of Mike. How many meters is grant ahead?
asked by I. Ranson 
Physics
A box slides down a 36° ramp with an acceleration of 1.05 m/s2. Determine the coefficient of kinetic friction between the box and the ramp.
asked by Diana 
Chemistry Honors
I need help balancing equations 1) CH4+O2>CO2>+H2O 2) Hf+N2>Hf3N4 3) Mg+H2SO4>MgSO4+H2 4) C2H6+O2 >CO2+H2O 5) Pb(NO3)2 + NaI> PbI2+NaNO3 6) Fe+O2>Fe3O4
asked by S 
English
I forgot to include the following sentences on "The Legend of King Arthur". I really hope you can have a look at them too. 1) Within minutes is good friend appeared. Merlin assured him that he would take care of Arthur and hide him so that he wouldn't be
asked by Franco 
corporate finance
Bank One is offering a 30yr mortgage with an EAR of 5 3/8%. You plan to borrow $150,000, what will your monthly payments be
asked by rob 
English
I am writing an argument essay on school uniforms and I need some help writing the introduction. I am arguing in favor of school uniforms.. My thesis is ..School uniforms should be required in all public schools because not only do they cut down on the
asked by Kayla 
Physics  Stopping distance
Consider two bodies, A and B, moving in the same direction with the same kinetic energy. A has a mass twice that of B. If the same retarding force is applied to each, how will the stopping distances of the bodies compare?
asked by Anonymous 
physics
A crate of mass m = 230 kg is pushed at constant speed up the frictionless ramp (θ = 29.0°) by a horizontal force F. What is the magnitude of F? What is the magnitude of the force exerted by the ramp on the crate?
asked by jim 
Determinants of Interest Rates
If the rate of inflation is 5%, what nominal interest rate is necessary for you to earn a 3% real interest rate on your investment?
asked by Anonymous 
chemistry
A coal burning plant that burns 4 metric tons of coal containing 2% sulfur (S) requires 1 metric ton of wet limestone (calcium carbonate) to remove 90% of the sulfur. The process prevents most of the sulfur from being emitted as sulfur dioxide to the air
asked by emily 
6th grade
what is 3/10 divided by 13/14
asked by brett 
Physics
A car drives straight off the edge of a cliff that is 58 m high. The police at the scene of the accident note that the point of impact is 126 m from the base of the cliff. How fast was the car traveling when it went over the cliff?
asked by jake 
Chem
Assume the volume of a filter flask is 250.0mL. You have added (25.0 + 10.0)mL of solution so the volume of gas is (250.0  35.0) = 215.0mL. Calculate the extra volume of gas forced into the burette because of the measured average temperature of 23 degrees
asked by Alix 
College Chemisty
Given following reduction potentials in solution. Which is weakest oxidising agent in the list. List of numbers on right is for Eo/V. Al3+(aq)+3e = Al(s) 1.66 Sn4+(aq)+2e = Sn2+(aq) +0.14 Is(s)+2e=21(aq) +0.53 Why is a certain substance weakest? Is it
asked by Helen 
physics
just a couple more questions 1.) The power needed to accelerate a projectile from rest to is launch speed v in a time t is 43.0 W. How much power is needed to accelerate the same projectile from rest to launch speed of 2v in a time of 1/2t? 2.)A ball is
asked by jo 
physics
can some one help me with coming with a better way to word theses annswers. As the angle increases, what happens to the tension in the string? *the the tension in the string will get tighter or larger for t1 What would you have to do to the angle to make
asked by Derek 
Chemistry
A 26.7 g sample of ethylene glycol, a car radiator coolant, loses 668 J of heat. What was the initial temperature of ethylene glycol if the final temperature is 32.5°C (c of ethylene glycol = 2.42 J/gK)?
asked by Brittany 
3rd grade math
front end estimation to estimate the sum...like..436+517= ~~~~~~also we have some problems that say use rounding to estimate the sum...like..236+710=....DO WE DO BOTH OF THESE THE SAME WAY??? solve then estimate??? my child has been out from school for a
asked by Anonymous 
Physics  Faucault Pendulum
A Foucault pendulum can be used to demonstrate that earth is rotating. Explain how this is possible. What differences would you notice if you used the pendulum at the North Pole, at Earth's equator, and at altitudes between two points?
asked by Anonymous 
english
A good critic can manage to not be affected by his own bias and experience... true rite?
asked by danny 
physics
can some one help me with coming with a better way to word theses annswers. As the angle increases, what happens to the tension in the string? *the the tension in the string will get tighter or larger for t1 What would you have to do to the angle to make
asked by derek 
Chemistry
How much heat is required to change 2.5kg of ice at 0.0 degrees C to water at 50 degrees C?
asked by Cat 
physics
A car drives straight off the edge of a cliff that is 58 m high. The police at the scene of the accident note that the point of impact is 126 m from the base of the cliff. How fast was the car traveling when it went over the cliff?
asked by Anonymous 
Chemistry
The following is given: 20 ml of HCl (2.0 M) added with 5 ml of Na2S2O3 (0.3 M) with 5 ml of H2O S2O3^2(aq) + 2H^+1 (aq) > S (s) + SO2 (g) + H2O (l) Calculate the following: a) Reaction rate when 30 mg of sulphur is formed (in 30 ml of solution) after
asked by Stephanie 
math
At Irv's Cycle Rental Shop, Irv renst all knids of cycles: unicyles, tandem bikes, regualr bikes, and even tricycles for little kids. He parks all the cycles in front of the shop with a helmet for each rider strapped to the cycles. This morninf Irv counted
asked by Katherine 
curriculum content
when are childern first developmentally ready to being learning science?
asked by carlo 
satistics
A test is composed of six multiple choice questions where each question has 4 choices. If the answer choices for each question are equally likely, find the probability of answering more than 4 questions correctly.
asked by Anonymous 
physics
A 1100 N crate is being pushed across a level floor at a constant speed by a force of 500 N at an angle of 20.0° below the horizontal. (a) What is the coefficient of kinetic friction between the crate and the floor? (b) If the 500 N force is instead
asked by laven 
Math
A roofing crew can roof a house in 10 hours. If a second crew was added, the job would take 6 hours. How long would it take the second crew to roof the house alone?
asked by Scott 
chemistry
Which of the following would have a positive change in standard entropy at constant temperature? Choose all that apply. A) Burning octane to form carbon dioxide gas and water vapor B) Freezing titanium C) The endothermic dissolving of ammonium nitrate
asked by Nick 
Living Healthy
1.What changes are you going to make in your daytoday living that will improve your health and wellbeing? If you feel that your lifestyle is healthy, comment on the things that you are going to continue doing. 2.Suggest two things that you are going to
asked by Sara 
chemistry
which element has the groundstat electron configuration [Ar]4s^2 3d^10?
asked by Raynique 
Physics
Two blocks each of mass m = 4.10 kg are fastened to the top of an elevator as in the figure below. (a) If the elevator accelerates upward at 1.6 m/s2, find the tensions T1 and T2 in the upper and lower strings. T1 ? N T2 ? N (b) If the strings can
asked by Diana 
BIOLOGY GR.12
What are the differnt conditions for yest fermentation. i have to make a hypothesis and experment based on yeast fermentation. I WANT TO KNOW WHAT EFFECTS THE FERMENTATION. for example using a higher temp to put my yeast in will make the fermentation
asked by confused 
social studies
WEATHERCLIMATENORTHEM HEMISPHERESOUTHERN HEMISPHERECOMMUNITIES 1. On the map North America can be found in the (northem hemisphere) above the equator. 2. The condition of the air at a certain time is what we call (weather.) 3. People belong to many
asked by 3 grade 
math
At Irv's Cycle Rental Shop, Irv renst all knids of cycles: unicyles, tandem bikes, regualr bikes, and even tricycles for little kids. He parks all the cycles in front of the shop with a helmet for each rider strapped to the cycles. This morninf Irv counted
asked by Katherine 
Mathematics for Liberal Arts
How many different results could there be for 10 political candidates running for the same office in the upcoming election? There can only be 10 different results, only one person can win. how would i set this up?
asked by Jeannie 
chemistry
A coal burning plant that burns 4 metric tons of coal containing 2% sulfur (S) requires 1 metric ton of wet limestone (calcium carbonate) to remove 90% of the sulfur. The process prevents most of the sulfur from being emitted as sulfur dioxide to the air
asked by emily 
algebra
assume that a jeweler needs 80 grams of an alloy that is 30% gold. He has avaliable one alloy that is 5% gold and another that is 85% gold; he will mix some of each If x equal the number of grams of the first alloy (so the number of grams of the second is
asked by chad 
Math
If three times the smaller of two consecutive integers is added to four times the larger, the result is 39. Find the smaller integer
asked by Mya 
Chemistry
I don't understand this question and answer can someone help me? In order to exhibit delocalized pi bonding, a molecule must have . At least resonance 2 resonance structures. & In comparing the same two atoms bonded together, the greater the bond order,
asked by Ana 
Physics
An artillery shell is fired with an initial velocity of 300 m/s at 65.0° above the horizontal. To clear an avalanche, it explodes on a mountainside 37.5 s after firing. What are the x and y components of the shell where it explodes, relative to its firing
asked by KC 
chemistry
Use th relationships of E= hv and c=(upside down v)v to write E in terms of h, c, and upside down v
asked by Raynique 
Chemistry
27.0 mL of 1.00 M HClO4 are mixed with 27.0 mL of 1.00 M LiOH in a coffee cup calorimeter. The calorimeter constant is 28.1 J/C. Both were initially at 21.31 C. Calculate delta H(rxn) in kJ/mol for the reaction.
asked by Sue 
English
I really need to know if everything is OK. I hope you'll check them by tomorrow. 1) Within minutes his good friend appeared. Merlin assured him that he would take care of Arthur and hide him so that he wouldn't be killed. 2) At Uther's death Merlin felt
asked by Franco 
Physics
A jetliner is moving at a speed of 270 m/s. The vertical component of the plane's velocity is 39.8 m/s. Determine the magnitude of the horizontal component of the plane's velocity. Can someone please solve this?
asked by Jess 
business
A population is normally distributed, with a mean of 23.45 and a standard deviation of 3.8. What is the probability of each of taking a sample of size 10 and obtaining a sample mean of 22 or more?
asked by Anonymous 
Stat BHS 201
find the z score location of a vertical line that spearates a normal distribution as described in each of the following. a. 20% in the tail on the left b 40% in the tail on the right c 75% in the body on the left d. 99% in the body on the right
asked by jackie 
Physics
A car drives straight off the edge of a cliff that is 58 m high. The police at the scene of the accident note that the point of impact is 126 m from the base of the cliff. How fast was the car traveling when it went over the cliff? Can someone please
asked by Anonymous 
algebra
write a true number sentences using all of the given numbers and symbols 6,9,7,5,3,=,+,+,
asked by abishek 
Physics
A pulley is holding two masses0.5 kg and 2.0 kg. The system is in static equilibrium; the pulley is frictionless; the string is massless. What is the tension of the string holding the pulley?
asked by Lynn 
geometry
la base di un rettangolo misura 42 cm ed Ã¨ i 7/5 dell'altezza.calcola il perimetro
asked by Anonymous 
Physics
A force of 165 N is needed to keep a small boat moving at 2.57 m/s. What is the power required to keep the boat moving at the steady speed? >> I understand that P=Fv but I don't understand the second question. If the resistive force of the water increases
asked by Jordan 
Physics
A runner’s velocity along a straight track is 3.2 m/s at time 5.0 s and 2.2 m/s at time 13 s. Find the runner’s average acceleration during this time interval.
asked by Maria 
chemistry
which element has the groundstate electron configuration [Kr]5s^2 4d^10 5p^4
asked by Raynique 
Chemistry
What is the change in internal energy (in J) of a system that absorbs 0.677 kJ of heat from its surroundings and has 0.438 kcal of work done on it?
asked by Ashley 
physics
A ball was shot from the angles given in the table below. The corresponding ranges (landing at the same height from which it is shot) for three trials are given below as well. A. Determine the average range and standard deviation for each angle. B. Next
asked by Meghan 
Biology/DNA
When doing a DNA extraction, what advantages does a TE buffer provide to DNA that water cannot?
asked by Natalie 
PROBABILITY
There are 3 lucky tickets among 10 lottery tickets. 3 tickets are drawn at random. What is a probability that one ticket selected randomly from those three is lucky?
asked by JHONY 
Stat 1
A random sample of 10 miniature Tootsie Rolls was taken from a bag. Each piece was weighed on a very accurate scale. The results in grams were 3.087 3.131 3.241 3.241 3.270 3.353 3.400 3.411 3.437 3.477 (a) Construct a 90 percent confidence interval for
asked by sam 
Stat 1
In 1992, the FAA conducted 86,991 preemployment drug tests on job applicants who were to be engaged in safety and securityrelated jobs, and found that 1,143 were positive. (a) Construct a 95 percent confidence interval for the population proportion of
asked by sam 
math
x/5=15 how to solve it
asked by gio 
Corporate Finance
Your best taxable investment opportunity has an EAR of 4%. You best taxfree investment opportunity has and EAR of 3%. If your tax rate is 30%, which opportunity provides the higher aftertax interest rate?
asked by Anonymous 
English Literature
I'm having trouble understanding how I am supposed to identify the theme of creating art. Should I be looking at the environment the author is trying to create or should I be looking in a different direction?
asked by Samuel Brogdon 
PreAlgebra
USE THE LCD TO DETERMINE WHICH FRACTION IS GREATER. 1/4,2/7
asked by Tray 
chemistry
A 1.325 g sample of an unknown vapor occupies 386 mL at 114 celsius and 946 mmHg. The simplest formula of the compound is NO2. What is the molecular formula of the compound? (I have N2O4, is this correct and if not, why not? We never went over this type of
asked by lavonne 
math
find the lengths of the medians of the triangle with vertices at A(2,2), B(4,4)and C(0,4)
asked by Ted 
Math [Interest]
Okay, so I've been away from school for three weeks, and we have a math test tomorrow. I only just found out, and my friend emailed me the review questions. If someone could help me out, and show me how to do this, I'd appreciate it. No, I do not want
asked by Bob 
Simple and complete subjects
What is the simple subject in this sentence? The main character's name is YehShen.
asked by Dee 
AlgebraPlease check
Please check Solve 3 > sqrt(3x) 3x >=o x>=o/3 x>=0 square both sides and you have 3x < 3^2 3x,9 x
asked by JoniAnne 
Physics
A car accelerates from rest at 1.70 m/s2 along a 220m stretch of road. Find the car’s velocity at the end of the stretch.
asked by Maria 
college
A volume of 25.0 ml of 0.100 M CH3CO2H is tiltrated with 0.100 M NaOH. What is pH after the addition of 12.5 mL of NaOH? (Ka for CH3CO2H = (1.8 x 105)
asked by Helen 
English
1. I have been late for school more than ten times when I was a middle school student. 2. I have not broken windows before. 3. I have never used a cell phone in class. 4. I have played ball in my classroom before. 5. I have ever played ball in my
asked by rfvv 
economics
2. Given a firm’s demand function, P = 24  0.5Q and the average cost function, AC = Q2 – 8Q + 36 + 3/Q, calculate the level of output Q which a) maximizes total revenue b) maximizes profits
asked by murrali 
physics
just a couple more questions 1.) The power needed to accelerate a projectile from rest to is launch speed v in a time t is 43.0 W. How much power is needed to accelerate the same projectile from rest to launch speed of 2v in a time of 1/2t? 2.)A ball is
asked by jo 
Spanish
How do I say the weather in Buenos Aires is mostly sunny. I know sunny is hace calor but how to I actually say "The weather in Buenos Aires is hace calor? How do I say "the weather in Franklin is sunny and cool(hace sol y fresco)"but I need the whole
asked by Jamie 
writing
I need two more reasons why NYC is not safe
asked by Shahbaaz 
chemistry
when 4.00 times 10 to the fifth kg of H2 is added to an excess of N2, 1.04 times ten to the sixth kg of NH3 is produced. what is the percentage yield of th ereaction?
asked by alex 
5th grade
how many inches are in 15 yards?
asked by pat 
chemistry
What would happen if water was added to a reaction mixture before letting it cool
asked by noell 
Math
(3^x)(4^2x+1)=(6^x+2). Find the exact value of x giving the answer in the form x=ln(a)/ln(b).
asked by Jamie 
spanish help
What is the spanish equivalent to the following subject pronouns it and we
asked by kate 
US History
45. The British government decided to tax the American colonies a. to pay off war debts b. to teach the colonists a lesson c. to increase the standard of living in Britain d. to finance westward expansion A? 46. Union victories at Vicksburg and Port Hudson
asked by mysterychicken 
Math
How do you write 80000000 in scientific notation?
asked by Ally 
Physics
A 2.90 kg block starts from rest at the top of a 30° incline and accelerates uniformly down the incline, moving 2.23 m in 1.90 s. (a) Find the magnitude of the acceleration of the block. (b) Find the coefficient of kinetic friction between the block and
asked by Diana 
physics
A book whose mass is 2kg is projected up a long 37degree inclined plane with initial velocity, 24m/s. The coefficient of kinetic friction between the plane and the book is 0.25. Use g= 10m/s^2. a) Find friction force. b) How much time does it take before
asked by Janille 
chemistry
How many milliliters of 0.10 M H3PO4 could be neutralized by 20.0g of NaOH? H3PO4(aq)+3NaOH(aq)>3H2O(l)+NaPO4(aq)
asked by Dana 
physics
suppose a plate glass window falss out of place from the top floor of the Bionic Tower. althought the window`s speed is only 6.32 cm/s
asked by Anonymous 
AlgebraPlease checkI'm desperate
Posted by JoniAnne on Wednesday, October 20, 2010 at 11:50am. Please check Solve 3 > sqrt(3x) 3x >=o x>=0/3 x>=0 square both sides and you have 3x < 3^2 3x,9 x
asked by JoniAnne 
Math 3
graphing log functions for y=log12^x I don't have a calculator for this and I would like to know how to work this problem on paper so I can graph it to my chart. Can someone please help me with this problem?
asked by Brandon 
physics
Sir please let me know that how do we calculate time period of the oscillating rod, t=2pi(2l/3g)^1/2.. & why do we take length 2/3 of the total length??
asked by aun 
math
is there any way to get the answer of 13 and 54 by multiplying? thank you very much
asked by $draculaura 
trig
if 8 tan Q=15 then sinAcosA=?
asked by ashias 
math
easy way to solve linear equations
asked by jen 
College Chemistry
1. What is the change in internal energy (in J) of a system that absorbs 0.677 kJ of heat from its surroundings and has 0.438 kcal of work done on it? 2. A 30.5 g sample of an alloy at 94.0°C is placed into 48.7 g water at 20.3°C in an insulated coffee
asked by Nevaeh 
college English
What can I write about for an event from my life. I need something that I can write a lot about and would be interesting to my classmates
asked by Anonymous 
statistics
Use the following information and data for questions 15. A group of researchers hypothesizes that listening to music while studying for an exam influences test scores. They randomly selected 28 subjects and randomly assigned them to one of four groups.
asked by TLC 
Physics
A particle's initial velocity is −24.0 m/s. Its final velocity, 3.00 seconds later, is −14.0 m/s. What was its average acceleration?
asked by Maria 
math
which decimal has the highest number 4.1, 6.3, 0.31
asked by ann 
ENGLISH!!!!!!!!!
Hi! Where should the comma go in the following sentence? Throughout the novel, Steinbeck has foreshadowed the novel's ending by giving some details about Candy's old dog which Carlson shot since it was getting too old and useless. Should it go after the
asked by HAPPY FACE :) 
ENGLISH!!!!!!
Where should the comma go in this sentence? Candy's dog represents Lennie and the fact that the dog was shot foreshadows the end of the book when Lennie is about to get shot. Should it go after the word "shot" (or is there no need for a comma?) Please
asked by HAPPY FACE :) 
Algebra
To simply the expression of 10*(2c)*3 I need to make sure I understand it, would the answer be 302c?
asked by Erin 
math
one gallon is equal to 128 fluid ounces.Garret estimates that four gallons is about 500 fluid ounces. is Garrett's estimate reasonable? expiain why or why not.
asked by jojo 
calculus
how do i differentiate √secx+tanx ??
asked by harry 
Pre Calc
can the domain be (∞, ∞) if there is a verbal in the denominator?
asked by Heather 
Math
David carried 29 pounds of kitty litter in bags into the basement. There were 4 pound bags and 7 pound bags. How many of each size bag did he carry?
asked by I. Ranson 
business
Continuing with the population described in item 19 above, what is the probability that between 15% and 20% of the business travelers say that the reason for their most recent business trip was an internal company visit?
asked by Anonymous 
college Geol 101
Suppose you have a sample of clamshell at a Paleoindian site and you measure the 14C activity of a 100gram sample of carbon as 320 disintegrations per minute (or 3.2 disintegrations per gram of carbon per minute). a.What was the activity (in
asked by Jay 
Chemistry
Balance the net ionic equation I− + NO− 2 ! NO + I2 (in acidic solution). What is the sum of the coefficients? Use H+ rather than H3O+ where appropriate. 1. 13 2. 15 3. 17 4. 11 5. 19
asked by Jeremy 
algebra
one side of a triangle is three time the shortest side. The third side is 7 feet more than the shortest side. The perimeter is 62 feet. Find all three sides.
asked by Kim 
Finance
A 46yearold man deposits a total of $2000 per period in an IRA until age 65. How much money will be in the account if the interest rate is 10% compounded semiannually with payments made at the end of each semiannual period?
asked by Katie 
US History
Can I get some links to help me write an essay on this? Thanks 'Compare the colonial empires of Spain, France, and England in terms of their settlements, economic structure, and political control.' MC
asked by mysterychicken 
Geography
What is colonalism? When I searched it all the definitions are so confusing. So I don't understand. Thank you
asked by Alania 
Microeconomics
Suppose that two people, Michelle and James each live alone in an isolated region. They each have the same resources available, and they grow potatoes and raise chickens. If Michelle devotes all her resources to growing potatoes, she can raise 200 pounds
asked by Anonymous 
MS. SUE PLEASE HELP!!!
Where should the comma go in the following sentence? Throughout the novel, Steinbeck has foreshadowed the novel's ending by giving some details about Candy's old dog which Carlson shot since it was getting too old and useless. Should it go after the word
asked by HAPPY FACE :) 
Biology
What does the net movement of solutes/solvents during osmosis and diffusion mean?
asked by Emily 
English
Posted by rfvv on Tuesday, October 19, 2010 at 11:00pm. 1. I am looking for a dress to wear to the meeting. 2. I am looking for a shirt to wear to the birthday party. 3. I am looking for suits to wear to the conference. (Are they all grammatical? Why do we
asked by rfvv 
algebra
1r/1+r = 2/3
asked by maureen 
Chem 11
How many grams of O2 are required to produce 255grams of SO2 in following reaction? 4FeS2+11O2===> 2Fe2O3+8SO2
asked by Emmy 
8th grade math
1/9 = a / a + 24 solve for a
asked by Anonymous 
biology
an experiment with only two products used which are yest and sugar what are the outcomes? the procedure to conduct this experiment?
asked by help needed 
chemistry
A 2.50X102 g sample of an unknown hydrocarbon contains 3.28X101 g of hydrogen. How many moles of carbon does it contain?
asked by angie 
Probability
There are 3 lucky tickets among 10 lottery tickets. 3 tickets are drawn at random. What is a probability that one ticket selected randomly from those three is lucky? PLEASE HELP
asked by JHONY 
Math
please give me an example of a positive and a negative nonzero integer. Thank you.
asked by Magda 
chemistry
the pressure exerted on a 240.ml sample of hydrogen gas at constant temerature is increased from 0.428 to 0.724.What will the final volume of the sample be?
asked by shubreet 
HiStOrY!!
what is Homer trying to say in The Iliad?
asked by Kayla 
Spanish
¿Cómo se dice "I am going to bed." en español? ¿Puede se dice "Me acuesto"?
asked by Gray 
math
write a expression for each model
asked by Rafael 
social studies
who settled mesopotamia in the sixth grade social studys book
asked by bianca moralez 
child care
Hey guys, i just wanted to make sure my answers were correct. Can someone check for me and give my feedback please. 1. Today in class you’re going to talk to your students about Vitamin C and what it does for a person’s body. From which one of the
asked by CMB 
physics
The rate at which distance changes in a time period is called acceleration
asked by Bhai 
earth
The weight of a large animal is 120 kg on earth , what is the weight on the moon with onesixth the gravity of the earth ?
asked by john 
algebra
find function value f(x)=x
asked by Dave 
math
What is the simplified form of x[53{2x3(xt2)}]
asked by Janae 
business economics
explain using illustrations how the study of business economics helps business managers in decision making
asked by Anonymous 
statistics
help I posted a question and never received an answer.
asked by jackie 
math
draw a 5cm x 5cm grid in your homework book. your task is to break the grid up into rectangles of the correct size. your grid must contain 6 x 2cm rectangles, 3 x 3cm rectangles and 1 x 4cm rectangle (or square) how do i do this??
asked by chloe 
math
Find the equations of the wedians of the triangle with vertex coordinates J(2,5), K(4,1), andL(2,5)
asked by Ted 
SOC 101
Social settings of the different forms of social structure described by Durkheim, Tonnies, and Lenski is quite interesting. Please tell me the likes and differences of these sociologists. I cannot understand the extrememly complicated jargon while
asked by Gia 
Chemistry
If you use a different mass of magensium metal in an experiment would the empirical formula of the compund be the same?
asked by Ash 
math
how do i find the x value if (3x5)+2x=90
asked by courtney 
Math
A runner takes 20 seconds to run 100 meters. How long to run 25 meters? (Ex. 25/100 = 20/?)
asked by Selena 
english
revision is??
asked by danny 
French
I am writing a journal in the subjonctif which is fine. except i have NO idea how to write it in the passe compose. For example, i wanted to write It is clear that she had the attention of the class..but i cannot figure out how to write in the the past
asked by Dawn 
math
Does 1 17/18  7/9 = 2 13/18?
asked by Aly 
number patterns
mrs brander has 30 tomato plants .she wants to plant the same number of plants in each row of her garden.explain how she could decide the number of rows to plant
asked by mona 
spanish
i need these words unscrambled for spanish isasll sitvieleon ipsos
asked by jenny 
accounting
what will be the adjusting entry if partners take distributions from their business instead of taking salary?
asked by priya 
algebra
what is the factor by removing the greatest common factor for x126x5, step by step
asked by toni 
CTS practice tests
I am scheduled to take my CTS test for music in a few weeks. I've been looking online for practice tests or old tests that I could take to prepare for the exam. Any clues where I might find some? Thanks
asked by max 
spanish
how do i answer these question donde esta la universidad? como es la universidad? cuando es la clase de espanol?
asked by kate 
Physics
A force of 165 N is needed to keep a small boat moving at 2.57 m/s. What is the power required to keep the boat moving at the steady speed? >> I understand that P=Fv but I don't understand the second question. If the resistive force of the water increases
asked by Jordan 
ENGLISH!!!!!
Candy's dog represents Lennie and the fact that the dog was shot foreshadows the end of the book when Lennie is about to get shot. In the sentence above, does the part that says "...foreshadows the end of the book when Lennie is about to get shot." does it
asked by HAPPY FACE :) 
12th gradechemistry
what mass of lead (ii) iodide (pbl2, mass=461 amu)is precipitated by the addition of an excess of potassium iodide (ki, mass=166 amu)to 50.0 ml of 0.60 m lead (ii) nitrate (pb(no3)2, mass=331.2 amu)?
asked by ashlee 
foundations of geometry
find y and bc if b is between a and c ab=6y, bc=12y
asked by benjimn 
Algebra
To simplify the expression of 4r(3r7) I came up with 12r^28r. I cannot take this any further because they are not like terms, is that correct?
asked by Kate 
Calculus
I need help creating an equation for a piecewise defined function with two different rules, that is continuous but not differentiable at the point where the rules change, x=3. Please help to justify the answer.
asked by Kelly 
stat
I posted a question but never got an answer.
asked by jackie 
Chemistry
What is the enthalpy change when 19.0 g of water is cooled from 33.0°C to 2.70°C?
asked by Ashley 
College Geology Homework
Suppose you have a sample of potassium feldspar from a rhyolite and you measure the ratio of atoms of 40Ar to 40K of 0.024 to 1, or for every 10000 atoms of 40K you find 240 atoms of 40Ar. For this problem, consider the decline of 40K from an initial value
asked by Louis 
5thgrade math
The number below shows the rain fall in Mira, Mississippi last week. What is the range of the data? 5cm 8.2cm 2cm 9cm 4.5cm 3.9cm 2.1cm
asked by pat 
physics
How many revolutions will the car have gone through when the magnitude of its total acceleration is 2.80 m/s^2?
asked by blashhh 
English
1. I need a dress to wear at the party. 2. I need a dress to wear to the party. (#1 means I need a dress which I am going to wear at the party. So I will take a dress and wear the dress at a dressing room. Then I will join the party. #2 means I need a
asked by rfvv 
Economics
Which is not an economic right enjoyed by consumers
asked by Destinee 
Physics
A coil has a horizontal axis. Its current goes North on top. What is the direction of the magnetic field inside this coil?
asked by Please help 
chemistry
Calculate pH of 0.02 mol/L Ba(OH)2 solution. (Assume 100% dissociation).
asked by Helen 
science
Most organisms have a(n) of traits from both parents. Mixture or Heredity
asked by Alana 
statistics
what is the mean for the population of scrores shown in the frequency distribution table? X f 5 1 4 2 3 3 2 4 1 2
asked by Anonymous 
elementarymath
Do you think that the formula p=6n+1, where n, is a whole number, will produce a prime number more than 50% of the time? Give evidence to support your conclusion
asked by Rena 
math
where do you place parentheses to make this statement true 9,5 + 2  8 times 3 + 1 = 22
asked by isaiah 
engish language art
what business offer and what people buy creates an?
asked by Shara 
College Physics
A coil has a horizontal axis. Its current goes North on top. What is the direction of the magnetic field inside this coil?
asked by Michelle 
business
Describe how to accommodate WritePoint submission and feedback time
asked by Roxanne 
Penn Foster
I need help on my research project I havn't writing a paper in like in the 21 years.If someone can give me their opinion about these questions.1.When should the patient be advised of the existence of computerized databases containing medical information
asked by Awilda 
social studies
we live on the east coast false rules are only spoken and never written false
asked by 3 grade 
Writing
If there is not enoufh police patroling in the city what would happen to us citizens?
asked by Ahmed 
physics
A person falls from a height of 2.0m on earth(a=g=9.8m/s2). What acceleration is necessary for them to stop over 30 cm (assuming they bend their knees)? what if they don't bend their knees hence stop over a distance of 1 mm?
asked by risha 
religion
i know somebody in the bible warned about churches being separate in the days of the house churches and that they should be viewed as being one entitity..does anyone know this off the top of their head. I can't find it on the internet.
asked by Anonymous 
english
Tell if the verb is action or linking. 1. My grandmother seems young to me. seemslinking 2. They looked odd in the oldfashioned clothing of the 1950's. lookedlinking 3.Mrs Shuman cooks great Dutch food. cooksaction 4.Joseph never knew his grandparents.
asked by Janice 
math
how would i find the value of r if 5(r1)=2(r4)6
asked by joelseph 
earth
how far should a man go from the centre of the earth such that his weight is 1\4th of that on the earth?radius=6400km.
asked by jahnvi 
physics
if the speed of light in air is3.0 by 10 to the 8 power per second calculate speed of light in a glass box
asked by stela 
english
what is a frame story..?
asked by danny 
english
Mark Twain's real name was Samuel Clemens..?
asked by danny 
11th grade
Use the following functions to solve. f(x) = x2 + x + 1; g(x) = 5  2x; h(x) = x2 Solve f(g(1))
asked by greg 
math
What kind of graph is used to help you find the mode?
asked by Anonymous 
building technology
what are the types of building codes and whae their functions?
asked by Mary 
science
Is tongue rolling inherited. Is finger crossing inherited
asked by milena 
Science
Most organisms have a (n) _______________ of traits from both parents ?
asked by Alana 
social studies
in what way do natural resources help to provide jobs?
asked by kiki 
chemistry
list the sequnce in which the following orbitals fill up: 1s , 2s , 3s, 4s , 5s, 6s, 7s, 2p, 3p , 4p, 5p , 6p , 7p , 3d, 4d, 5d, 6d, 4f, 5f
asked by Raynique 
History
Why do many historians consider World War II a good war?
asked by Darlene 
EnglishPlease Edit
Recently my class and I watched the movie "The Martian Child", and the teacher told us to write about the theme: Changed perspectives lead to Understanding. ~ The teacher said that this could be our delayed thesis if we wished. This is how it needs to go:
asked by Sara 
maatthh
2 5/7 + 1 2/5 + 3 2/7 , I change alll the denominators to 70 right?
asked by Aly 
SOCIAL STUDIES
which region(s)have the most peole living near each other?
asked by I NEED HELP 
math
A coordinate grid is used on the plan of a new housing development. fibre optic cable is being laid with a microtunnelling machine. The cable will link points with coordinates A(18,12), B(8,1), C(3,4)and D(15,7)in a run beginning at A and ending at D .
asked by Ted 
earth science
what kind of air mass weather is likely to follow the passing of a warm front?
asked by kira 
ital
italian numbers 2130
asked by susie 
college
a description of the “gestalt revolt”
asked by Anonymous 
Science
Help!! How many atoms in 3.45 mL of water? (H2O only;mL=g) and If you are out panning for gold and discover a nugget that is exactly 2.50 moles, how many molecules, atoms, and grams would you have? At a cost of $375 per ounce, what would be the value of
asked by Jack 
Project topic ideas
Any ideas on a public service activity for a project that can be done by interviews surveys phone conversations etc..
asked by kim 
6th grade
in the figure below abc is a right triangle and m L a =36
asked by destinee 
Calculus
Find the equation of the tangent line to the graph of f(x) = −6x ln(x + 10) at x = 0.
asked by Erika 
math correct not correct
3 1/2 + 6 1/2 + 10 3/4 = 20 3/4?
asked by Aly 
math word problem
Ida catches four fish that weigh 5 1/4, 3 1/2, 1 3/4 and 2 pounds each. She releases the smallest fish. What is the total weight of the fish that Ida keeps?????
asked by Aly 
math
round 423 and 17 to the nearest ten then add the two rounded numbers
asked by jasmin 
math
find the equation of the perpendicular bisector of a chord of a cicle, given that the end points of the chordare(2,0) and D(4,4).
asked by Ted 
math
Roger has played basketball for 5 3/4 years. Cindy has played for 2 5/6 years. What us a reasonable estimate for how much longer Roger has played than Cindy?
asked by Aly 
math
16b^225z^2
asked by Anonymous 
math
Lest to Greatest. 2/3, 0.6, 0.66 I know 2/3 = .6 reapeating. so would it be 0.6,0.66, 2/3?
asked by Aly 
AlgebraPlease check my work
Posted by JoniAnne on Wednesday, October 20, 2010 at 11:50am. Please check Solve 3 > sqrt(3x) 3x >=o x>=o/3 x>=0 square both sides and you have 3x < 3^2 3x,9 x
asked by JoniAnne 
elementarymath
Do you think that the formula p=6n+1, where n, is a whole number, will produce a prime number more than 50% of the time? Give evidence to support your conclusion
asked by Rena 
Math last one!
Simifly the expression X x X2 x multiplied by x to the 2 power would it be x times x times x?
asked by Aly 
hurry i need help
1939 there was a war what was is called why was it there and who was in it
asked by bianca moralez 
algebra
unit rate of 23miles in 4 minutes
asked by Anonymous 
English
Can you please check if these sentences are correct? Thank you very much. 1) How long does your English lesson (class) last? 2) The Druids formed the intellectual class in Celtic society. 2) To become Druids, students were instructed and trained in large
asked by Franco 
World history
What is "free enterprice?"
asked by danny 
Science
Most organisms have a (n) _______________ of traits from both parents ?
asked by Alana 
graphic art
How can you utilize contrast in your designs, yet still retain an overall sense of balance
asked by Jackie 
math
v+5+6v=1+5v+3 how would i get the value of v
asked by courtney 
math
A triangle has vertices P(7,7), Q(3,5), and R(5,3). a. calculate the lengths of the midsegmaents b. calculate the lengths of the three side of triangle PQR. c. compare your answers in a. and b. what do you notice
asked by Ted 
Math
Can anyone help me with this question? 2/(1+x)+1/(x2)=2/(1x) Thanks =]
asked by Yaya 
science
two objects with masses of 2.0 kg and 5 kg, are 3.25 m apart, what is the gravitational force between them?
asked by Anonymous 
5th grade
how many inches are in 15 yards?
asked by pat 
math
y/y2 minus 1= 1/y3
asked by courtney 
grammar
Befor the nurses meet to evaluate their patients
asked by QSM 
History/Geography
What impact did the dissolution of the Union of Soviet Socialist Republics have? A) affected nations throughout the world B) decreased conflict in eastern Europe C) increased communism throughout the world D) none I thought either A or B. But I'm not quite
asked by Cassie 
Chemistry
A mass of 0.200 kg of an unknown metal at 94C is placed in 0.3 kg of water at 10C. The final temperature of the metal and water are 20C. What is the specific heat capacity of the unknown metal?
asked by Cas 
math
1. 63x7 2.63/7> / r 3.70.5  42.3 4.89x4
asked by jojo 
4th grade
explain how you could show five less than a number using an expression
asked by pancho 
geometry
in what way do natural resources help to provide jobs?
asked by kiki 
PLEASE HELP! HISTORY
summary of how the Edict of Toleration relates to the time in which it was produced?
asked by Kayla 
math
Estimate each difference 25 5/18  9 11/17
asked by Aly 
math correct or not correct
10 1/2  8 5/8 = 2 and 1/8?
asked by Aly 
Mrs. Sue
Why are some teachers so unfair?
asked by amanda 
building technology
what is the impact of technology on security
asked by Mary 
government
why would people consider sending united states troops to intergrate a local school?
asked by ashley 
math
Okay 5/9 + 7/9 I know you change the denominator so 5/6 = 15/18 or 3/18 7/9 = 14/18 or 2/18 which one?
asked by Aly 
us history
the ideALs of the athenian state, roman law, and the mayflower compact contributed most significantly to the groth of the priciples of???
asked by janae 
world history ap
describe the spread of sedentary agriculture outside the older civilized areas
asked by lily 
pump
what size of submersible pond pump would be required to pump water approx 650 gls per hour , straight up 3 meters,and what would be the wattage required,
asked by michael 
math
Give a counterexample to show that each of the following generalizations about the set of integers {3,2,1,0,1,2,3} is false. a) commutative property for subtraction b)associative property for subtraction
asked by m 
safe medical practices
should written polices be developed for abbreviation usage
asked by Anonymous 
health
Please name two influences, factors, or pressures (internal or external) that affect a healthcare organization or healthcare organization and/or manager’s job.
asked by Anonymous 
stat
Microbes in a certain colony exposed to radiation have a 1=6 chance of being mutated. a. If ten microbes from the colony are sampled, what is the probability that exactly 4 will be mutated? b. If ten microbes from the colony are sampled, what is the
asked by jack 
English
Is the infinitive "to use" used as an adjective in this sentence: "in your opinion, what is the easiest wordprocessing program (to use)?
asked by Jake 
8th grade earth science
how to find the longitude of meridians
asked by alex 
English
Could you tell me if these sentences are correct? I have to identify the linking verbs. 1. I have grown weary of television. 2. She has been late every day this week. 3. You should be hungry after all that work. 1=have grown 2=has been 3=should be
asked by Kim 
math
2 thirds times 12
asked by makayla 
English: Vocab
for the word "hiatus" can it be used in a sentence that says: He took a hiatus from his hobby. (that sentence was from a website) just want to make sure its right
asked by Amy 
PLEASE HELP! HISTORY
summarize the Edict of Milan by Constantine and Liciniu Augustus
asked by Kayla 
math
(x10)=7 what dose x equal
asked by courtney 
math
if you know that 8 time 7 is 56 , how can you use the commutative property of multiplication to find the product of 8 times 7
asked by deanna 
English grammar
In the question "Where are the spoons?", what is "where"? adverb? preposition? please explain why
asked by jay 
English
Is the infinitive "to use" used as an adjective in this sentence: "In your opinion, what is the easiest wordprocessing program (to use)?
asked by Jake 
science
how far will the different types of footballs affect the distance the football will go?
asked by Anonymous 
bilogy
Organism Physiology Paper
asked by wildfressia 
Calc
lim as x approaches negative infintiy (x^2+x^3) I just don't know where to start
asked by Math 
math
2 2/5 + 1 1/4
asked by Aly 
math
e=mc square
asked by Anonymous 
SOCIAL STUDIES
what is the connection between how virginia is divided into regoins and the elevations of the land?
asked by I NEED HELP 
science
whats does NaPO4 stand for
asked by brianna 
To Ms. Sue
Ms. Sue, could you please take a look at my Living Healthy Post, you are the only other English teacher I know besides Writeacher, and she's not on right now.
asked by Sara 
WESTERN CIV!
can you give me a summary of the Iliad by Homer?
asked by Brittany 
earth science
why are warm and cold fronts ussually weaker in the summer?
asked by kira