Questions Asked on
October 18, 2010

physics
A 120 N child is in a swing that is attached to ropes 2.20 m long. Find the gravitational potential energy of the childEarth system relative to the child's lowest position at the following times. (a) when the ropes are horizontal (b) when the ropes make a
asked by Katie 
Chemistry
How many carbon atoms are contained in 2.8g of C2H4?
asked by Quincy 
Chemistry
An automobile antifreeze mixture is made by mixing equal volumes of ethylene glycol (d=1.114 g/mL; M=62.07 g/mL) and water (d=1.00 g/mL) at 20 degrees C. The density of the mixture is 1.070 g/mL. Expreess the concentration of ethylene glycol as volume
asked by Stacey 
9th gradesocial studies
i have a project on changing area under forest and its impact on environment and i am not getting any information on it can you help me
asked by Anonymous 
Chemistry
A sample of an unknown gas effuses in 11.1 min. An equal volume of H2 in the same apparatus at the same temperature and pressure effuses in 2.02 min. What is the molar mass of the unknown gas?
asked by Ashley 
Chemistry
How many moles of solute particles are present in 1 L of 1.20 M KBr?
asked by Shea 
spanish
Help with spanish!!!! Have to put correct words in the banks. 2 of them will not be used.? 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
asked by jeff 
Chemistry
How many moles of solute particles are present in 1 L of aqueous 0.08 M ethanol (C2H5OH)?
asked by Blair 
Chemistry
Pheromones are compounds secreted by the females of many insect species to attract males. One of these compounds contains 80.78%C, 13.56%H, and 5.66%O. A solution of 1.41g of this pheromone in 9.23g of benzene freezes at 2.73 degrees C. what are the
asked by Rory 
math
The city council has decided to add a 0.3% tax on motel and hotel rooms. If a traveler spends the night in a motel room that costs $55 before taxes, how much will the city receive in taxes from him? I am studying for a exam, would you also know a good
asked by amelie 
Chemistry
1. A small piece of zinc reacts with dilute HCl to form H2, which is collected over water at 16°C into a large flask. The total pressure is adjusted to barometric pressure (752 torr), and the volume is 1538 mL. Use Table 5.2 to help calculate the partial
asked by Carter 
history
what was the napoleonic code?
asked by Emma 
chemistry
A steel tank contains carbon dioxide at 34 celsius and is at 13.0 atm. Determine the internal gas pressure when the tank and its contents are heated to 100 clesius. Do i need to convert to kevins here. There are answers using both, so which is correct.
asked by lavonne 
chem
vinegar is 5.0% acetic acid, CH3COOH, by mass. vinegar has a density of 1.02 g/ml what is the madd of acetic acid in 50.0 ml of vinegar?
asked by Anonymous 
physics
A 14 N force with a fixed orientation does work on a particle as the particle moves through displacement d = (2i  4j + 3k) m. What is the angle between the force and the displacement if the change in the particle's kinetic energy is (a) +7.54 J and (b)
asked by Sam 
physics
A sample of blood is placed in a centrifuge of radius 20.0 cm. The mass of a red blood cell is 3.0 1016 kg, and the magnitude of the force acting on it as it settles out of the plasma is 4.0 1011 N. At how many revolutions per second should the
asked by Erica 
physics
The only force acting on a 3.0 kg body as it moves along the positive x axis has an x component Fx = 9x N, where x is in meters. The velocity of the body at x = 2.3 m is 9.7 m/s. (a) What is the velocity of the body at x = 4.4 m? (b) At what positive
asked by Megan 
Chemistry
calculate cell potential at 25C for: 3Fe3+(aq) + AL(s)= 3Fe2+(aq)+ Al3+ (aq) if Fe3+ = 0.300 M, Fe2+ = 0.150M Al3+ = 0.300M. The standard reduction potentials are as follows: Fe3+ (aq) + e = Fe2+ (aq) Al3+ (aq) + 3e=Al (s) Eo = +0.771 V Eo = 1.66 V
asked by Helen 
math
Write three number that are greater than 1,543,000 but less than 1,544,000
asked by jose 
To Emma
You've been banned from posting on Jiskha for a couple of days. Twice you posted questions with my name in the Name box. Do not try to impersonate anyone else on this forum.
asked by Ms. Sue 
PHYSICS HELP!
A laser beam is directed at the Moon, 380,000 km from Earth. The beam diverges at an angle of 6.2×10−5 rad. What diameter spot will it make on the Moon? Express your answer using two significant figures.
asked by LIZ 
Chemistry
A volume of 25.0 ml of 0.100 M CH3C02H is titrated with 0.100 M NaOH. What is pH after the addition of 12.5 ml of NaOH? (Ka for CH3CO2H = 1.8x105)
asked by Helen 
Physics Help!!
A laser beam is directed at the Moon, 380,000 km from Earth. The beam diverges at an angle of 6.2×10−5 rad. What diameter spot will it make on the Moon? Express your answer using two significant figures.
asked by Sam 
Chemistry
The U.S. Food and Drug Administration lists dichloromethane (CH2Cl2) and carbon tetrachloride (CCl4) among the many cancercausing chlorinated organic compounds. what are the partial pressures of these substances in the vapor above a mixture containing
asked by Claire 
college
A coin dealer, offered a rare silver coin, suspected that it might be a counterfeit nickel copy. The dealer heated the coin, which weighed 14.0 g to 100°C in boiling water and then dropped the hot coin into 29.5 g of water at T = 15.0°C in an insulated
asked by andrea 
physics
A particle moves along a straight path through displacement i = (2.2 m) + c while force = (3.2 N)  (3.8 N) acts on it. (Other forces also act on the particle.) What is the value of c if the work done by on the particle is (a) zero, (b) 3.2 J, and (c) 7.3
asked by Sam 
physics
A jet pilot takes his aircraft in a vertical loop.f the jet is moving at a speed of 1500 km/h at the lowest point of the loop, determine the minimum radius of the circle so that the centripetal acceleration at the lowest point does not exceed 6.0 g's.
asked by Anonymous 
Physics
A bullet of mass is fired horizontally with speed at a wooden block of mass resting on a frictionless table. The bullet hits the block and becomes completely embedded within it. After the bullet has come to rest within the block, the block, with the bullet
asked by Eden 
college chemistry
Use standard enthalpies of formation to determine ƒ¢Horxn for: 2NH3(g) + 3O2(g) + 2CH4(g) ¨ 2HCN(g) + 6H2O(g) in kilojoules. Find the change in internal energy for this reaction in kJ
asked by jake 
Chemistry
The U.S. Food and Drug Administration lists dichloromethane (CH2Cl2) and carbon tetrachloride (CCL4) among the many cancercausing organic compounds. what are the partial pressures of these substances in the vapor above a mixture containing 1.75 mol of
asked by Monica 
physics
A small rubber wheel is used to drive a large pottery wheel, and they are mounted so that their circular edges touch. The small wheel has a radius of 1.7 cm and accelerates at the rate of 6.9 rad/s^2, and it is in contact with the pottery wheel (radius
asked by rob 
chem 101
how many grams of oxalic acid dihydrate to completely neutralize 25ml of 0.12 M of sodium hydroxide
asked by andrew 
Trig
Find the general solution for the equation 4tanx+cotx=5?????? and the steps please? THANYOO!
asked by Valerie 
calculus
Use differentials (or equivalently, a linear approximation) to approximate ln(1.02) as follows: Let f(x)=ln(x) and find the equation of the tangent f(x) line to at a "nice" point near 1.02 . Then use this to approximate ln(1.02) .
asked by Denzel 
Thermochemistry
When 1 mol of a gas burns at constant pressure, it produces 2426 J of heat and does 6 kJ of work. What is Delta H, q, and w?
asked by Michelle 
Physics  charge on sphere
Two 2.0g spheres are attached to each end of a silk thread 1.20m long. The spheres are given identical charges and the midpoint of the thread is then suspended from a point on the ceiling. The spheres come to rest in equilibrium, with their centers 15cm
asked by Anonymous 
physics
At an accident scene on a level road, investigators measure a car's skid mark to be 58 m long. It was a rainy day and the coefficient of friction was estimated to be 0.46. Use these data to determine the speed of the car when the driver slammed on (and
asked by xz 
physics
A 250kg crate is pushed horizontally with a force of 710 N. If the coefficient of friction is 0.20, calculate the acceleration of the crate.
asked by das 
Chemistry
Calculate the temperature, in K, of 2.20 moles of gas occupying 3.50 L at 3.30 atm.
asked by jswass 
chemplease help!!!!!
when a 25.0 mL sample of an unknown acid was titrated with a 0.100 M NaOH solution. Determine Ka for the unknown acid. Volume NaOH = 25 mL; pH=8.25
asked by Rosemary 
physics
A 65 kg crate is dragged across a floor by pulling on a rope attached to the crate and inclined 25° above the horizontal. (a) If the coefficient of static friction is 0.54, what minimum force magnitude is required from the rope to start the crate moving?
asked by Sam 
math
If Leah is 6 years older than Sue, and John is 5 years older than Leah, and the total of their ages is 41. Then how old is Sue? How do you know what and, is, and older mean in mathematical terms?
asked by amelie 
Chemistry
A sample of an unknown gas effuses in 11.1 min. An equal volume of H2 in the same apparatus at the same temperature and pressure effuses in 2.02 min. What is the molar mass of the unknown gas?
asked by Ashley 
literature
In Twain's "The Private History of a Campaign that Failed," Smith, the blacksmith's apprentice, is given "ultimate credit" for A. naming the militia group's encampments. B. keeping the group trained and ready for battle. C. being killed in battle. D.
asked by royalty 
US History
11. The Spanish established outposts in the Southeast to a. trade with Native Americans b. encourage Spanish immigration c. search for previous metals d. protect its trade routes No idea... 13. One thing a person could do in 1900 but not in 1865 was a.
asked by mysterychicken 
english homework
I have to write a letter....and i kinda suck at writing letters.... A national television station recently broadcast a programme about the town/city where you live. You found the information in the programme badly represented the area and you have decided
asked by edyx17 
Chemistry
The vapor pressure of pure ethanol at 20 degrees C is 44 mmHg, and the vapor pressure of pure methanol at the same temperature is 94 mmHg. In a solution of the two, the mole fraction of ethanol is .439; the mole fraction for methanol is .561. Calculate the
asked by Stephany 
Math
what is 18/25 divided by 2?
asked by Misti 
physics
calculate the impulse necessary to stop a 1500 kg car travelling at 90km/hour
asked by Anonymous 
Chemistry
Sorry DrBob, it's me again! Here's the info: Antacid Brand: Life Concentration of HCl: 0.1845 M Concentration of NaOH: 0.1482 M Trial 1: 1.Mass of Table: 1.2173g 2.Volume of HCl added: 75.0 mL 3.Milliomoles of HCl added:(0.1845M x 75.0mL= 13.84 mmoles
asked by AkhedTo DrBob222 
chemistry
95.0 mL of H_2O is initially at room temperature (22 degree C). A chilled steel rod at 2 degree C is placed in the water. If the final temperature of the system is 21.3 degree C, what is the mass of the steel bar?
asked by Mely 
calculus
Gravel is being dumped from a conveyor belt at a rate of 30 cubic feet per minute. It forms a pile in the shape of a right circular cone whose base diameter and height are always equal to each other. How fast is the height of the pile increasing when the
asked by jon 
managerial economics
Consider the following shortrun production function (where L = variable input, Q =output): Q = 10L  0.5L2 Suppose that output can be sold for $10 per unit.
asked by Anonymous 
US History
4. The power of judicial review allows federal courts to decide a. who will be President if the Electoral College is tied b. if state and federal laws are constitutional c. if legislative acts should be signed into law d. on the size of the military B? 9.
asked by mysterychicken 
5 th grade math
In the first year of production a play sells 1,572 tickets, in the second year it sells 1,753 tickets, in its third year it sells 152 less than in its second year. How many tickets are sold in 3 years? please! help me with this problem. thank you
asked by pat 
Chemistry
The decomposition of HI(g) is represented by the equation: 2HI(g) H2(g) + I2(g) Kc= 64 at 25°C. If the equilibrium concentrations of H2 and I2 at 400°C are found to be [H2] = 5.4x104 M and [I2] = 8.8x103 M, what is the equilibrium concentration of HI?
asked by Adam 
Chemistry
A 26.5 g sample of ethylene glycol, a car radiator coolant, loses 675 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)? Please help me, I don't even know where to begin!!
asked by Megan 
physics
1.If a mass is 15 cm from the axis of rotation and makes 25 revolutions in 10 seconds, what is its speed in m/s? 2.If m = 0.1 kg and the values above still hold, what is the numerical values of the centripetal force?
asked by Derek 
calculus
Gravel is being dumped from a conveyor belt at a rate of 30 cubic feet per minute. It forms a pile in the shape of a right circular cone whose base diameter and height are always equal to each other. How fast is the height of the pile increasing when the
asked by jon 
financial accounting
Why is it necessary to prepare formal financial statements if all of the data are in the statement columns of the worksheet? Discuss
asked by Joan 
Organic Chemistry
Assume that a round bottom flask holds 100 mL and the distilling head has an internal volume of 12 mL in the vertical section. At the end of a distillation, vapor would fill this volume, but it could not be forced through the system. No liquid would remain
asked by Omama 
Physics
Assume cathy has to drag her suitcase along the floor of the airport terminal by a rope. The rope makes a 40.0 degree angle with the horizantal. The suitcase has a mass of 36.0 kg and Cathy pulls on the rope with a force of 65.0 N. a) What is the magnitude
asked by Lisa 
chemistry
What mass of natural gas CH_4 must you burn to emit 259 kJ of heat?
asked by Mely 
US History
Many immigrants who came to the United States expected to find streets paved with gold and easy oppurtuinities to make their fortunes. What were they most likely to find? Can I get a link to help, or something? Thanks MC
asked by mysterychicken 
Physics  net force on charges
Three charged particles are located at the vertices of a right angled triangle. Charge A(5.0*10^6) has Cartesian coordinates of (0,4); Charge B(5.0*10^6) is at the origin; Charge C(4.0*10^6) has coordinates (5,0),where the coordinates are in meters.
asked by Anonymous 
physics
A 56 cm diameter wheel accelerates uniformly about its center from 130 rpm to 400 rpm in 3.2 s. (a) Determine its angular acceleration. Express your answer using two significant figures. (b) Determine the radial component of the linear acceleration of a
asked by lauren 
Physics
Assume cathy has to drag her suitcase along the floor of the airport terminal by a rope. The rope makes a 40.0 degree angle with the horizantal. The suitcase has a mass of 36.0 kg and Cathy pulls on the rope with a force of 65.0 N. a) What is the magnitude
asked by Lisa 
chemistry
A steel tank contains carbon dioxide at 34 celsius and is at a pressure of 13.0 atm. Determine the internal gas pressure when the tank and its contents are heated to 100 celsius
asked by lavonne 
earth
On planet Tehar, the freefall acceleration is the same as that on Earth but there is also a strong downward electric field that is uniform close to the planet's surface. A 2.00 kg ball having a charge of 5.00 µC is thrown upward at a speed of 29.2 m/s
asked by Anonymous 
science
when lithium hydroxide pellets are added to a solution of sulfuric acid, lithium sulfate solution and water are formed
asked by hailey 
physics
A hunter wishes to cross a river that is 1.1 km wide and flows with a speed of 5.0 km/h parallel to its banks. The hunter uses a small powerboat that moves at a maximum speed of 9 km/h with respect to the water. What is the minimum time necessary for
asked by john 
chemistry
Calculate the mole fraction of acetic acid in vinegar, assuming that vinegar is 5.00% acetic acid(by mass) and that the density of vinegar is 1.05 g/mL
asked by Anonymous 
Chemistry
A solution of vinegar is 5.16% by mass aetic acid, CH3CO2H, in water. Assuming the density of vinegar is 1.00 g/mL, what is the molarity of the acetic acid?
asked by Missy 
physics
A 5.30 cm diameter wire coil is initially oriented so that its plane is perpendicular to a magnetic field of 0.570 T pointing up. During the course of 0.190 s, the field is changed to one of 0.350 T pointing down. What is the average induced emf in the
asked by VJC 
chemistry
Suppose 150.0 mL of 0.50 M HCl and 150.0 mL of 0.50 M NaOH, both initially at 24.0°C, are mixed in a thermos flask. When the reaction is complete, the temperature is 27.4°C. Assuming that the solutions have the same heat capacity as pure water, compute
asked by andrea 
physics
A box is given a push so that it slides across the floor. How far will it go, given that the coefficient of kinetic friction is 0.30 and the push imparts an initial speed of 4.0 m/s?
asked by KatieC 
physics
A 512 kg satellite is in a circular orbit about the Earth at a height above the Earth equal to the Earth's mean radius. (a) Find the satellite's orbital speed. (b) Find the period of its revolution. (c) Find the gravitational force acting on it.
asked by Erica 
Physical Science
If you do 600J of work hoisting a 20kg bale of hay, to what height did you lift
asked by Lo 
Data Management
Determine the number of ways of selecting four letters, without regard for order, from the word 'parallelogram'
asked by Brea 
chemistry
How much heat is required to warm 1.30 L of water from 30.0 degrees C to 100.0 degrees C? (Assume a density of 1.0 g/mL for the water.)
asked by Mely 
Physics  Charge on pith balls
Two pith balls equally charged and each with a mass of 1.5. White one ball is suspended by a thread, the other is brought close to it and a state of equilibrium is reached. In that situation, the two balls are separated by 2.6cm and the thread attached to
asked by Anonymous 
Physics
An crate weighing 576 N is resting on a plane inclined 31° above the horizontal. (a) Calculate the magnitude of the acceleration (ignore friction). (b) After 4.50 s, how fast will the crate be moving?
asked by Bloopps 
Math
3 neighbors are sharing a rectangular strip of land for a garden. They divide the land into 24 equal sized pieces. What fraction of the land does each person get if they share it equally? Write the answer in more than one way.
asked by Jimmy 
Math
Given f(x)=72(x1)^2, x>= 1, determine f inverse (5).
asked by Emily 
Science
A revolutionary war cannon, with a mass of 2170 kg, fires a 18.1 kg ball horizontally. The cannonball has a speed of 146 m/s after it has left the barrel. The cannon carriage is on a flat platform and is free to roll horizontally. What is the speed of the
asked by Cole 
chemistry
What is the net ionic equation for the reaction of AgNO3 with Ba(OH)2?
asked by Brandon 
physics
A 0.37 kg piece of putty is dropped from a height of 3.0 m above a flat surface. When it hits the surface, the putty comes to rest in 0.25 s. What is the average force exerted on the putty by the surface? magnitude N direction
asked by jibin 
American Corrections
during the 19th century, american society became increasingly: a) rural b) homogeneous c) heterogeneous d) nonindustrial I think the answer is either a or d but I just can not find it in my book anywhere...Please help me if you can. I have even googled
asked by Melisa 
Chemistry
A solution contains .370 mol of isopropanol (C3H7OH) dissolved in 1.700 mol of water. A) What is the mole fraction of isopropanol? B) What is the mass percent of isopropanol? C)The molarity of isopropanol?
asked by Natalie 
Math
if you roll a pair of fair sixsided number cubes, what is the probability of rolling two numbers whose sum is 2?
asked by Teresa 
physics
An emf is induced in a conducting loop of wire 1.24 m long as its shape is changed from square to circular. Calculate the average magnitude of the induced emf if the change in shape occurs in 4.21 s, and the local 0.123 T magnetic field is perpendicular to
asked by VJC 
chemistry
if a certain pressure supports a 256 column of mecury, how high a column of water would it support?
asked by lavonne 
ap chemistry
Cl2 + 2koh>kcl _kclo +H2O 3KClo>2Kcl+kclo3 4kclo3>3kclo4 +kcl what mass of cl2 (g) is required to make 234g kclo4
asked by adele 
physics
A gun is fired in the air a distance of 900 m from a person. He hears the sound of the gun after 3 seconds. What is the speed of sound?
asked by Shambhavi 
math
A radius of a circle has end points at O(1,3) and R(2,2). find two possible end points for the diameter that contains this radius. describe any assumptions you make.
asked by Ted 
Physics
A car starts from rest and accelerates at a constant rate of 1.1 m/s2. If the radius of the car wheels is 29 cm, and the final angular speed of the car wheel is 48 rad/s, how far does the car travel
asked by Sufian Syed 
physics
The acceleration due to gravity of mars is 3.7 m/s2. An astronautto throw a tennis ball 70 m upward on mars. How high will he able to throw it on the earth?
asked by sam 
Physical Science
A weight lifter cleans and jerks 150kg, lifting it 2m above the ground in 1.5s. What is his power output?
asked by Lo 
Calculus
A particle is moving along the curve y = 2 √{3 x + 7}. As the particle passes through the point (3, 8), its xcoordinate increases at a rate of 5 units per second. Find the rate of change of the distance from the particle to the origin at this instant.
asked by Jack 
NEED HELP POSTED TWICE
1. Find the slope of the line through the pair of points. (1/3,0) and (1/2,1/2) Choices: 3 1/3 1/3 3 2. Write in standard form an equation of the line passing through the given point with the given slope. Slope=8/7; (5,3) Choices: 8/7x+y=61/7
asked by Jacob 
Physical Science
The speed of a train increases fron 100km/h to 250km/h in 5 min. What is its acceleration
asked by Jan 
Chemistry
Substance A has a melting point of 10 degree celcius and a boiling point of 57 degree celcius. Sunstance B has a melting point of 67 degree celius and a boiling point of 15 degree celius. Room temperature is 20 degree celcius. (A) What is the physical
asked by Claudia 
accounting
Eddings Company had a beginning inventory of 400 units of Product XNA at a cost of $8.00 per unit. During the year, purchases were: Feb. 20 600 units at $9 Aug. 12 300 units at $11 May 5 500 units at $10 Dec. 8 200 units at $12 Eddings Company uses a
asked by vivian 
Compter programing Design
Design a program that will ask the user to enter the amount of a purchase. The program should the compute the state and county sales tax. Assume the state sales tax is 4 percent and the county sales tax is 2 percent. The program should display the amount
asked by BJ 
Physics
A 10 kg box is pulled across the floor at a constant velocity of 3.0 m/s. If the box is pulled with a force of 40 N, what is the size of the frictional force between the box and the floor?
asked by Diana 
3rd grade
juan says "when you put together unequal groups, you can only add." is he correct?
asked by kesha 
science
the acceleration due to gravity of mars is 3.7 m/s2. An astronautto throw a tennis ball 70 m upward on mars. How high will he able to throw it on the earth?
asked by sam 
Math
find the range of the given distances: 2km, 101km, 125km, 227km, and 307km.
asked by Faye 
Chemistry
Could someone please help me complete my lab experiment. Antacid Brand: Life Concentration of HCl: 0.1845 M Concentration of NaOH: 0.1482 M Trial 1: 1.Mass of Table: 1.2173g 2.Volume of HCl added: 75.0 mL 3.Milliomoles of HCl added:mmoles ? Help 4.Volume
asked by Akhed 
Chemistry
To prevent the presence of air, noble gases are placed over highly reactive chemicals to act as inert "blanketing" gases. A chemical engineer places a mixture of noble gases consisting of 4.50 g of He, 15.0 g of Ne, and 33.6 g of Kr in a pistoncylinder
asked by Arian 
math
one endpoint of a line segment has coordinates(3,1). The midpoint of the line segmaent is at (1,1), what is the location of the other end point?
asked by Ted 
physics
A hunter wishes to cross a river that is 1.1 km wide and flows with a speed of 5.0 km/h parallel to its banks. The hunter uses a small powerboat that moves at a maximum speed of 9 km/h with respect to the water. What is the minimum time necessary for
asked by john 
Calculus
A particle is moving along the curve y = 2 √{3 x + 7}. As the particle passes through the point (3, 8), its xcoordinate increases at a rate of 5 units per second. Find the rate of change of the distance from the particle to the origin at this instant.
asked by Jack 
Physics
At a certain location, the Earth's magnetic field has a magnitude of 5.90E5 T and points in a direction that is 71.6° below the horizontal. Calculate the magnitude of the magnetic flux through the top of a desk at this location that measures 132 cm by
asked by VJC 
US History
Last 4 for the day! 19. Most pioneers who settled west of the Appalachians were a. families looking for good land b. miners looking for gold and silver c. missionaries seeking converts d. bankers from New York and Boston A? 20. What message did Protestant
asked by mysterychicken 
geometry
Find each measure using the given measures of triangleXYZ. Round angle measures to the nearest degree and side measures to the nearest tenth. Find measure of angle Y if y= 7,z=11,and the measure of angle Z=37.
asked by tracy 
Physics
A car starts from rest and travels along a circular track with a radius of 55.0 meters. The car starts out at a position due East of the center of the track, heading due North initially around the track, which is counterclockwise. The car increases its
asked by Diana 
Chemistry
Acetic acid is a polar molecule and can form hydrogen bonds with molecules. Therefore, it has a high soulubility in water. Yet acetic acid is also soluble in benzene (C6H6), a nonpolar solvent that lacks the ability to form hydrogen bonds. A solution of
asked by Karly 
chemistry
How much heat is required to warm 1.60 L of water from 26.0 degree C to 100.0 degree C? (Assume a density of {1.0 g/ml for the water.)
asked by Mely 
Grammar
Possessive nouns Money might be sewn into ______ coat linings. Answers A. Women's B. Woman's C. Womens' D. Woman's Is it b
asked by Kolten 
Music Theory
Trumpet I need the notes and fingerings for Concert Scales: C, F, B flat, E flat, A flat, D flat, and G, and also all the notes and fingerings for the Chromatic scale from G to G (two octaves) for the trumpet. any help would be greatly appreciated (:
asked by Andi 
spanish
What subject form would you use for mis amigos? Ex: usted, nosotros, ellos...?
asked by Gretchen 
physics
A 34.7 cm diameter coil consists of 20 turns of circular copper wire 1.50 mm in diameter. A uniform magnetic field, perpendicular to the plane of the coil, changes at a rate of 9.00E3 T/s. Determine the current in the loop. Determine the rate at which
asked by VJC 
Trig
Solve for 0≤x≤2π > (2√2)cos²(x)(√22)cos(x)1=0 much thanks .
asked by mickey 
social studies
what cultural impact did the aryan migrations have on india?
asked by meg 
English
My last two that are confusing me. Identify verb and tell if transitive or intransitive. 1) Most people think of bamboo as a tree or a bush. 2) Bamboo belongs to the grass family. 1) think=intransitive 2) belongs=intransitive
asked by Stephanie 
Math
Given f(x)=2x^21, determine the equation of the inverse.
asked by Emily 
algebra
In a college, some courses contribute more towards an overall GPA than other courses. For example, a science class is worth 4 points; mathematics is worth 3 points; history is worth 2 points; and English is worth 3 points. The values of the grade letters
asked by john 
Physics
A copper calorimeter can with mass .100 kg contains .160 kg of water and .018 kg of ice in thermal equilibrium at atmospheric pressure. If .750 kg of lead at a temperature of 255 degrees Celsius is dropped into the can what is the final temperature of the
asked by Katherine 
math 20 (finance)
Can someone walk me through how I would enter this into the calculator TMV solver. Can it be done? Jeremy has a balance owing of $4000 on his credit card. The creditcard company charges 18.0% annual interest, compounded monthly. 1.) If Jeremy makes
asked by Sandi 
Physics
An object with a mass of 3.09x10^0 kg is subjected to a force of 8.8505x10^2 N directed at an angle of 1.6968x10^2 degrees from the x axis. A second force of 2.98725x10^3 N acting in the negative Y directions is also applied to the object. To two
asked by peter 
Chemistry
what is the wavelength of the photon emitted when an electron drops from a 4p orbital to a 2p orbital in a hydrogen atom
asked by Emily 
Algebra
Choose the equivalent expression(3h^2j^3k)^2(hj^5k^3)^2 The signs that look like minuses are negative signs Answers: 3h^6j^16K^4 9h^2j^5j^16k^4 9h^6j^4k^4 Please helpI'm totally lost
asked by Annie 
austin
seth has three times as many stickers as evan. together they have 52 stickers. how many stickers does each person have?
asked by trisha 
AlgebraPlease check my answers
Posted by Jessie on Monday, October 18, 2010 at 3:48pm. I think I figured it outplease check I'm really stuck on these problems Simplify 6xy(3xy)^2? I think this is 2/3xy choices were 2/xy 3xy 2xy 2/3xy Simplify 12xyz^2/8x^2z choices were 3x^2y/2z^3
asked by Jessie 
math
There are 40 people at a picnic, there are 4 more children than adults. How many of each are there? adults? children?
asked by Anonymous 
Stress
Think of a stressful time in your life. How did you deal with the stress. Right down a thoughtful answer. The most stressful time in my life came about when my great grandmother died. I was shattered completely after hearing that news, and so was my
asked by Sara 
english
In the sentences below, which are transitive or intransitve verbs? 1. It is related to wheat, oats and barley. 2. Their size might surprise you. 3. Some reach a height of 120 ft. 4. The stems measue a foot in diameter
asked by Lori 
math
gcf of 3 numbers are 9, sum is 90, what are the numbers?
asked by John 
AlgebraPlease check my answers
Posted by Jessie on Monday, October 18, 2010 at 3:48pm. I think I figured it outplease check I'm really stuck on these problems Simplify 6xy(3xy)^2? I think this is 2/3xy choices were 2/xy 3xy 2xy 2/3xy Simplify 12xyz^2/8x^2z choices were 3x^2y/2z^3
asked by Jessie 
AlgebraPlease help
I'm really stuck on these problems Simplify 6xy(3xy)^2? Simplify 12xyz^2/8x^2z Thank you
asked by Jessie 
physics
A hunter wishes to cross a river that is 1.1 km wide and flows with a speed of 5.0 km/h parallel to its banks. The hunter uses a small powerboat that moves at a maximum speed of 9 km/h with respect to the water. What is the minimum time necessary for
asked by john 
College Math
Your small library of books consists of 6 novels, 7 mathematics books, and 1 biology book. Calculate the number of ways to arrange them on a bookshelf for each of these situations. a) The books can be arranged in any order? b The novels must be together
asked by Tian 
Physics
A weight lifter cleans and jerks 150kg, lifting it 2m above the ground in 1.5s. What is his power output? How do you set this problem up i know the units?
asked by Lorin 
shifts
Which sentence contains a shift in subject and voice? a) His book was returned to the bin, and then Johnny carried the other books home. b) The lake contained garbage that flows through the storm drains. c) If a student does not understand the assignment,
asked by Anonymous 
Economics
True or false: The US must remove tariffs and quotas to open trade with foreign countries. Consider the following issues: The definition of tariffs and quotas. The strength of the dollar on domestic and global economies. Benefits from tariffs or quotas,
asked by Emily 
physics
A car starts from rest and travels along a circular track with a radius of 55.0 meters. The car starts out at a position due East of the center of the track, heading due North initially around the track, which is counterclockwise. The car increases its
asked by Diana 
College mechanic vibration
A halfcar model of an automobile suspension system is shown below. You are to design its suspension systems (values of spring constants and damping constants). Generally, for ride comfort, it is desired to have the bounce motion at low frequency and the
asked by joe 
English
I'm having trouble with transitive and intransitive verbs. I have to pick out the verb and tell if it's transitive or intransitive. Some reach a height of 120 feet. reach=intransitive The stems measure a foot in diameter. measure=intransitive
asked by Doug 
Algebra 2
1. Find the slope of the line through the pair of points. (1/3,0) and (1/2,1/2) Choices: 3 1/3 1/3 3 2. Write in standard form an equation of the line passing through the given point with the given slope. Slope=8/7; (5,3) Choices: 8/7x+y=61/7
asked by Jacob 
chemistry
Calculate the number of moles of CaCO3 in 3.20g of Calcium Carbonate.
asked by Samantha 
chemistry
if 40kj of energy is absorbed by 500g od water in 10c temprature. what is the fainal temprature of the water?
asked by suhail 
Physics
Both start from rest, but experienced Stan leaves the starting line 1.00 s before Kathy. Assume Stan moves with a constant acceleration of 3.45 m/s2 and Kathy maintains an acceleration of 5.10 m/s2. (a) Find the time it takes Kathy to overtake Stan. (b)
asked by john 
science
an ethereal solution contains benzoic acid, 9fluorenone, and ethyl 4aminobenzoate. why would ethyl 4aminobenzoate and 9fluorenone not be extracted from this ethereal solution by aqueous base?
asked by Amy 
Ap Chem
At 200K, the particles of gas X have an average velocity equal to that of Argon at 400K. What is the identity of X? He CO HF HBr F2
asked by suzan 
History
One of the ironies of World War I was that in a war to make the world safe for democracy, government attacked the civil liberties that make democracy possible.
asked by Connie 
Business
Research the Goldman Sachs website. Using your research findings from the Library and the Internet, develop both an EFAS (External Factors Analysis Summary) table and an IFAS (Internal Factors Analysis Summary) table. The tables are to be submitted in one
asked by Corrine 
Chemistry
What is the enthalpy change when 17.0 g of water is cooled from 36.0°C to 6.40°C?
asked by Megan 
Math
I understand how to make StemandLeaf plots,but I don't understand what to count by if my numbers are (from least to greatest) 13,14,16,18,20,32,33,52,58,61,and 67.Please help me!!!
asked by Bethany 
chemistry
have my results from a simple titration experiment (sodium carbonate against hydrochloric acid) Average titre of 53.27 cm3 which i am happy with but how can i state that my results are accurate and how can i convince my lecturer my results are
asked by paul m 
English
I will try this again. I have to identify the verb and tell if it's transitive or intransitive. It is related to wheat, oats, and barley. is related=intransitive In Japan the hollow stems serve as water pipes. serve=intransitive
asked by Doug 
math
i don't understand stem and leaf plots
asked by kurt 
Geometry
when you have a graph with just dots and the dots make a figure. Then the dots on the outside are the posts and the inside dots are trees. what equation can i use to get the area of the figure using only posts and trees?
asked by Cheyenne 
Algebra 1
S = n/2(A+t) solve for A I don't undersand what to do with all these variables.
asked by Sarah 
Algebra
A saline solution was made by mixing 11 ml of a 36% saline solution and 6 ml of a 53 % saline solution. How do I find the consentration of the new mixture?
asked by Hannah 
Chemistry
What is the empirical formula for Dichloroethane?
asked by Amber 
Chemistry
Shown below is the chemical equation for the thermal decomposition of calcium carbonate. CaCO3(s) CaO(s) + CO2(g) H°rxn = 175 kJ How will the amount (not concentration) of CaCO3(s) change with the following stresses? CO2(g) is removed? Decrease, Increase
asked by Adam 
Evolution
In natural populations of the intertidal copepod Finistra elegans, variation exists for two color morphs: a light brown form and a light green form. A student estimates the frequency of the light brown copepod to be 12%, 15%, and 17% over three consecutive
asked by Kimberry 
Biology
A cell has a salt concentration of 0.2 %. If it is placed into a solution with a salt concentration of 0.1 %. a) What change will occur to the salt concentration inside the cell? b)What change will occur to the water concentration inside the cell? c)What
asked by Emily 
chemistry
I am completing a lab where I had to determine the mass percent of Mg(OH)2 in an antacid tablet , and I am trying to determine sources of error for my lab. I was wondering if when I backtitrated with NaOH after I overshot on purpose would the added OH
asked by Peter 
English
Can you please check if the following paraphrase (?) of Wordsworth's poem is correct? Thank you very much. 1)This poem was probably inspired by a walking tour of the Scottish Highlands which W., his sister Dorothy and Coleridge went on in 1893. 2)In the
asked by Franco 
English
In Japan the hollow stems serve as water pipes. Would the verb in this sentence be an intransitive or transitive? intransitive
asked by Amy 
chemistry
A sample of gas weighing 9.0 (g) at a pressure of 1 atm occupies a volume of 12.3 L. If the pressure is doubled,what is the resulting volume? (Assume constant temperature)
asked by Dakota 
Physics
A 10 kg box is pulled across the floor at a constant velocity of 3.0m/s. If the box is pulled with a force of 40 N, what's the size of the frictional force between the box and the floor?
asked by Diana 
social studies
so Sue the territory Samule de Champlain explored is canada?
asked by Billie 
english
Can I please, please get some websites that will show me the local government structure of dekalb county (atlanta, georgia), and, political issues concerning dekalb county. This is stuff I need for my paper, I've been searching google all day, but nothing
asked by y912 
Math
find the perimeter of a regular octagon with sides of 5.5cm.
asked by Jerrry 
Math
complete the pattern: 1, 64, 2 ,32, 4, 16, ___ , ____.
asked by Donna 
precalc
log3 2 +log3 X +log3 (2x3)=log3 X + log3 (x+1) + log3 (x1)  log3 (x^21)
asked by sarah 
physics
would an object weigh more or less if there were no atmosphere on earth
asked by chetan 
physics
An 8.00 g bullet is fired into a 160 g block that is initially at rest at the edge of a table of 1.00 m height. The bullet remains in the block, and after the impact the block lands d = 1.6 m from the bottom of the table. Determine the initial speed of the
asked by A 
C programming
A few questions, all involving "for" loops that I am unsure how to do (Thank you in advance for the help): Q1.) Write a table of conversions from Celsius to Rankin. Allow the user to enter the starting temperature and increment between lines. Print 25
asked by Randy 
English
Bamboo belongs to the grass family. I have to tell if the verb is transitive or intransitive. belongs is the verb and it's intransitive
asked by Hayley 
introductory Algebra
A small slot machine holds 500 coins consisting of nickels, dimes, and quarters. The number of quarters is twice the number of dimes. If the value of all the coins is $88.00, how many nickels, were in the slot machine?
asked by Julie 
phys
A 5g bullet is fired from a 5000g gun. If the bullet leaves the gun going +800m/s, with what speed does the gun recoil?
asked by gg 
Math
Make up a set of at least 12 numbers that have the following landmarks maximum 18 range 13 mode 7 and median 12
asked by Kiki 
Math
What are all the whole number pairs of length and width values that give an area of 24 square meters for a rectangle?
asked by Nicole 
physics
A 27 g bullet traveling at 297 m/s is fired into a 0.468 kg wooden block anchored to a 100 N/m spring. How far is the spring compressed
asked by sandhya 
math
In his pocket, a boy has 3 red marbles, 4 blue marbles, and 4 green marbles. How many will he have to take out of his pocket to ensure that he has taken out at least one of each color?
asked by john 
5th grade SCIENCE
Why is a short curcuit called a short curcuit?
asked by DJ 
Math
How do you find the area of a semicircle
asked by Brooke 
math
A(3,2) B(8,4)are the ends of the diameter of a circle. the tangent of the circle at point B is 11x+6y+64=0 the line L passes through A and the origin. line L has a gradient of 2/3 what is the coordinates that the line L and tangent at point B cross??
asked by james 
Chemistry
At 2000°C, 5.0×103 mol CO2 is introduced into a 1.0 L container and the following reaction comes to equilibrium: 2CO2(g) 2CO(g) + O2(g) Kc = 6.4×107 a. Calculate the equilibrium concentrations of CO and O2. b. What fraction of the CO2 is decomposed at
asked by mg 
social studies
what territory did Samule de Champlain explore
asked by Billie 
Algebra 1 PLEASE help
Roberta sold fifty tickets for the school play. Roberta sold ten more student tickets than adult tickets. How many student tickets did Roberta sell? From this result, if the total cost of a student ticket was threefourths the cost of an adult ticket, and
asked by 123ABC 
statistics
Can a hypothesis test yield a statistically significant (say p
asked by Anonymous 
physics
really stuck, a 90 kg skier has 140 KJ of total mechanical energy when he is at a height of 120m above the bottom of the hill. calculate the skiers kinetic energy. calculate his speed?
asked by mitch 
English
Please check and see if I answered correctly. Have to identify the verb and tell if intransitive or transitive 1. In China people eat the tender shoots as a vegetable. 2. The Japanese also make flutes from the stems. 3. In some countries, bamboo cages hold
asked by Stephanie 
Science
How much would 1kg weigh on the Moon if the pull of gravity there is about onesixth of the pull of gravity on earth?
asked by Babiibun 
US History
23. A comparison of Native American societies in North America reveals that a. culture and language were the same everywhere b. distinct cultures arose from differences in local climate and terrain c. all were nomadic with little knowledge of agriculture
asked by mysterychicken 
chemistry
Based on the mass of O2 produced can you calculate the gram molecular weight? Chem lab on oxygen production 10g KClO3 reacts with heat to produce 2KCl(s)+3O2.What is the mass produced? 10g/122.6=0.0816 mole of KClO3 0.00816x3moleO2/2moleKClO3=0.1224 moleO2
asked by michelle 
Biology
Describe the structure of the interior surface of the small intestine and explain how this structure relates to its function.
asked by Michael 
chem
a balloon at constant temperature is subjected to pressure drop. The resulting volume will be ________ A. Greater than B. Less than C. Equal to the Original Volume of the balloon I put B. Less than but i am not sure
asked by Michael 
Chemistry
Given a 2.5 kg solution of phosphoric acid and water (56 % phophoric acid, by mass), calculate the number of moles of phosphoric acid.
asked by Emily 
Calculus
Find f'(x) if f(x) = (√x*e^xx^2)/ (x^2+1)
asked by Preston 
chemistry
What ions separate once added to water and how did the reaction occur?
asked by Kelly10 
physics
An 8.00 g bullet is fired into a 160 g block that is initially at rest at the edge of a table of 1.00 m height. The bullet remains in the block, and after the impact the block lands d = 1.6 m from the bottom of the table. Determine the initial speed of the
asked by A 
Chemistry
When 0.526 L of Ar at 1.20 atm and 227°C is mixed with 0.270 L of O2 at 501 torr and 127°C in a 400. mL flask at 27°C, what is the pressure in the flask?
asked by Carter 
Chemistry
Calculate the vapor pressure of a solution of 33.0 g of gylcerol (C3H8O3) in 500g of water at 25 degrees C. the vapor pressure of water at 25 degrees C is 23.76 torr
asked by Missy 
physics
A 7000 kg helicopter accelerates upward at 0.70 m/s/s while lifting a 1000 kg car to a mountaintop for a TV commercial photo shoot. What tension must the cable be able to withstand without breaking?
asked by Diana 
math
Eddings Company had a beginning inventory of 400 units of Product XNA at a cost of $8.00 per unit. During the year, purchases were: Feb. 20 600 units at $9 May 5 500 units at $10 Aug. 12 300 units at $11 Dec. 8 200 units at $12 Eddings Company uses a
asked by vivian 
english
Life is either a daring adventure or nothing. what does it mean
asked by 000 
physics
If the jet is moving at a speed of 1500 km/h at the lowest point of the loop, determine the minimum radius of the circle so that the centripetal acceleration at the lowest point does not exceed 6.0 g's.
asked by Anonymous 
Math
Sam makes 6.50 per hour. What percent of increase would Sam need to be paid exactly $6.65 per hour?
asked by Alexis Ancelet 
Chemistry
Concentrated sulfuric acid used in the laboratory is 92% H2SO4 by mass. Calculate the mass of water in a 100 g solution of this acid in kg.
asked by Steph 
chemistry
If the specific heat of a metal is 0.150 cal/gdeg, what is its approximate weight?
asked by Anastasia 
English
I forgot to include the following sentences. 3)What kind/type of school do you go to? I go to a private school. 4) How do you spend your free time? What do you do in your free time? 5) How far do you walk to school? How many kilometers do you walk to
asked by Franco 
MTH 156
I am having trouble with this question, please help. If a person makes $30,000 in 2004 and the inflation rate is 4% annually, how much is this salary worth in the year 2008 (in terms of 2004 dollars)?
asked by Tammy 
PreCalc
what is the cot of theta if the cos of theta = 4/9 and theta lies in quadrant IV
asked by T 
Trigonometry
How do you simplify these equations: 1.)(2/cot^3(x)  cot^2 (x)) + (2/cot (x)2) 2.) (2/ tan^2 (x)) + (2/ tan(x) 2)
asked by Shen 
precalc
find where f(x)0 f(x)=xlnx2x
asked by emily 
chemistry
What ions separate once added to water and how did the reaction occur?
asked by Kelly10 
Physics C. Mechanics
A small paint bucket of mas 5.0 kg is attached to a larger bucket of mas 15.0 kg by a light rope of 25 m long. The small bucket is at rest on the ground, and the rope goes up and over a small frictionless pulley and is attached to the larger bucket, which
asked by Rav 
Chemistry 106
Calculate number of moles of aluminum in 1.50kg of Al
asked by Samantha 
math
The endpoints of the diameter of a circle are A(1,1) and B(0.5,3). calculate the radius of the circle.
asked by Ted 
US History
1. Colonial American society was organized according to a belief in a. a strong middle class b. a classess society c. equality of opportunity d. inequality C? 3. Why did most Puritans come to North America? a. to avoid imprisonment b. to set up their own
asked by mysterychicken 
English
I forgot to include a few other sentences on the paraphrase Wordsworth's "The Solitary Reaper".Thank you very much for helping me. 1)The poet gives universal significance to the girl’s song by introducing a remote, ancient dimension in time and space.
asked by Franco 
physics
A 27 g bullet traveling at 297 m/s is fired into a 0.468 kg wooden block anchored to a 100 N/m spring. How far is the spring compressed
asked by sandhya 
Chemistry
1. Can I2 react with Cyclohexane to form any product (without or without spectroscophic properties)? 2. Can I2 react with tbutyl or nbutyl alcohol to form any organic product? 3. What is the complex formed between I2 and tbutyl alcohol? Is this complex
asked by John 
Algebra, check please?
5(N+2)=3/5(5+10n) And then I wrote down 5n+10 But what would do after that? I know that the equal sign basically cuts it inhalf so that it's two problems.. but I just don't know what to do from that point. Help please? Allyson
asked by Allyson 
Math Algebra
kassie an kesya are dividing $39 into two parts in order that the sum of 2/3 of one part and 3/4 of the other part is $28. What are the parts?
asked by bob 
Algebra, help
So, I've written down 22x+70=17x95 and I think you would add together 22 and 17, to get 39x right? and then you would subtract 70 from the 95 and get that number and solve, correct?
asked by Allyson 
Maths Calculus Derivative Integral  Urgent Please
Use 2nd Fundamental Theorem of Calculus to find derivative of f(x) = integral of 2x^2 (at the top) to x5 (at the bottom) of square root of Sin(x)dx
asked by Nick 
Chemistry
Sorry DrBob22, I wasn't sure if you saw my last post. But, I am still a little confused. Here's the info: Antacid Brand: Life Concentration of HCl: 0.1845 M Concentration of NaOH: 0.1482 M Trial 1: 1.Mass of Table: 1.2173g 2.Volume of HCl added: 75.0 mL
asked by AkhedTo DrBob222 
Math
what is 837 divided by f=31?
asked by Sandi 
Physics
A 17.0 cm diameter circular loop of wire is in a 1.35 T magnetic field. It is removed from the field in 0.190 s. What is the average induced emf?
asked by VJC 
science
what is the charge on an aluminum ion?
asked by mic 
Calculus
Find the local extrema of the function f(x) = (e^x^2+1)/(2x+1) defined for x > 0, and specify whether they are minima or maxima and give reasons why they are what you claim they are.
asked by Preston 
engineering
Using mechanics of materials principles, (i.e. equations of mechanical equilibrium applied to a freebody diagram), derive the following equations: s’ = s cos2q = s[(1+ cos 2q) / 2] t' = s sinq cosq = s [sin 2q / 2] s=sigma, q=theta, t=tau I have looked
asked by Bob 
chemistry
What ions separate once added to water and how did the reaction occur?
asked by Kelly10 
algebra, please help
the membership fee for oining a camp association is 45 a local campground charges members of the camping associatons 35 per night for a campsite and non members 40 per night, after how many nights of camping is the total cost for the members includingthe
asked by Allyson 
calculus
Find the number c if the line y=x is to be tangent to the graph of f(x)=x^4+c. what are the coordinates of the points of tangency?
asked by Dom 
english
Please help me pick out the adjectives in this paragraph. In the first two stanzas, Mr. Lowell emphasized the wealth of the dandelion by using several phrases suggesting riches, such as "harmless gold," "buccaneers," and "Eldorado." In the third stanza,
asked by Shelly 
Chemistry
Lake VIda is an enormous hypersaline lake that lies under 19 m of ice in the Dry Valleys region of Antartica. The freezing point of this water is approximately 15.0 degrees C, owing to the fact that it is many times as salty as typical saltwater.
asked by Shea 
Algeblease check my answer
Posted by Annie on Monday, October 18, 2010 at 7:20pm. Choose the equivalent expression(3h^2j^3k)^2(hj^5k^3)^2 The signs that look like minuses are negative signs Answers: 3h^6j^16K^4 9h^2j^5j^16k^4 9h^6j^4k^4 9h^6j^4k^4 Please help I'm so
asked by Annie 
physics
a golf ball is struck at a 45 degree angle and flies off at 28m/s. what is the range? using the SOH CAH TOH method and the range formula.
asked by Natalie 
Chemistry
A solution contains .370 mol of isopropanol (C3H7OH) dissolved in 1.700 mol of water. What is the mass percent of isopropanol? What is the molality of isopropanol? i've done it a couple times now and i must have something off
asked by Luke 
Chem 2068 lab
Once I have the molarity for KHP which is 0.0027 M, and i add 14.48 mL of NaOH to the solution, what is the concentration of NaOH in the solution.
asked by Car 
math
There are 46 more cars than trucks in a parking lot. There were 29 trucks. Write an expression that shows how many cars were in the parking lot.
asked by Anonymous 
english
Define sentence variety and rhythm in your own words and explain how they interact in effective writing
asked by jessica 
Physical Science
What are at least twenty words and clues relate to the Gas Law?
asked by Aaliyah 
Math
Kay is making beaded belts for her friends from 6.5 meters of cord.On belt uses 0.625 meters of cord.How many belts can she make?
asked by Kaitlyn 
Maths
If dy/dx = 8x  3x^2 , then how you show that dy/dx is postive when 0
asked by Remy 
math
what is the difference between a solution set and a replacement set
asked by cheryl 
Chemistry
At what temperature (oC) will a gas sample occupy 6.1 L if it originally occupies 17.8 L at 27.1oC? I did (v1/t1)=(v2)/(t2) v1=17.8 v2=6.1 t1=27.1 C = 300.25 K the answer i got for t2= 102.894 K which would be 170.106 C This doesnt seem right is it?
asked by kellie 
precalc
(3x)^2/(27^x2)=1 I have to find the solution
asked by pauly 
AP U.S. History
Between 1763 and 1789, the use and control of the frontier regions presented problems to both the British and the Americans. Describe the problems involved in the use and control of the frontier and explain how both the British and the Americans attempted
asked by Amanda 
Science
what would be the approximate volume of a: teaspoon of syrup? regular soft drink?
asked by Pratigya 
Math
The Lappans buy 3 large sandwich wraps to serve at a picnic. 9 people in all will be at the picnic. Show 3 different ways to cut the sandwiches so that each person gets an equal share.
asked by Jimmy 
math
A(3,2) B(8,4)are the ends of the diameter of a circle. the tangent of the circle at point B is 11x+6y+64=0 the line L passes through A and the origin. line L has a gradient of 2/3 what is the coordinates that the line L and tangent at point B cross??
asked by james 
Biochem
When trying to purify a protein using column chromatography, what happens to the mass of the protein eluted from the column if you accidentally run it dry? Would it be more or less? Thanks.
asked by Nancy 
algebra
Will and frank can do a certain job together in 60 minutes. Will can do 3x as much of the job as frank can. in any given amount of time how many minutes would it take will to do the job alone..??
asked by caitlyn 
US History
14. The main argument in support of the Bill of Rights was that a. they would help opponents of slavery gain the upper hand b. without them the US would be a republic government c. they would protect the people from a tyrannical government d. without them
asked by mysterychicken 
government
This has to do with when the English settlers moved from England/Britian to the New World. "How did such loyal englishmen become a "rebellious group of deliquents"??
asked by Morrissa 
physics
a stationary car with a mass of 1500 kg reaches a velocity of 15 m/s 5 seconds after starting, what is the car's acceleration
asked by Joe Darp 
Math
My worksheet title reads "Modeling 3Digit Addition Practice" and then it has the problem 186+245 and then it has a table with four colummns and 3 rows the first column title reads "BaseTen Drawings" the second one reads "Record the Problem" and the third
asked by Dora 
physics
need some help, A ball with an initial angular velocity of 20.0 rads /s and a rotational inertia of 0.4kgm rolls uphill with an acceleration of 4.00 rad/s . Calculate the net torque acting on the ball. Calculate the angular displacement after 5.00 s.
asked by justin 
English
Can you please check if the following sentences are possible? Thank you very much. 1) Have you been to/in the new supermarket? No, not yet. 2) I've driven your car twice. Or It's the second time I've driven it. 3) How long ago did you go to Paris? Or When
asked by Franco 
Stress
How can having Visual/Spatial Intelligence make you deal with stress better?
asked by Sara 
english
By adding sentence variety in writing you can give it life and rhythm. Your readers can be bored by reading too many sentences with the same structure and length. It can grow to be monotonous for readers.
asked by jessica 
math
I’ve skipped to much school, well not necessarily skipped but have been sick. I had strep throat for 2 weeks. Now i get this project mailed to me, sleep all day, and didn't do it. I just need one more strategy that explains this: How to get the answer to
asked by ral 
Stress
In a sentence or two, describe each of your own top three stressors. 1. Time. ~ I get a lot of homework and I try to use my time well to finish it all, but with distractions in the way it's not possible. 2. Health. ~ I am very conscious about my health, so
asked by Sara 
Physical Science
What are twenty questions that you could ask a scuba diver about scuba gear and diving?
asked by Aaliyah 
algebra
CAN YOU PLEASE EVALUATE THE EXPRESSION TO 4 DECIMAL PLACES 10SQ ROOT OF 18 DIVIDED BY 11
asked by ABBS 
Math
The Lappans buy 3 large sandwich wraps to serve at a picnic. 9 people in all will be at the picnic. Show 3 different ways to cut the sandwiches so that each person gets an equal share.
asked by Jimmy 
marketing
in th Van Dyke and bacon shoe stores, identify the buyers and sellers as well as the goods or services, how closely do real world conditions match the characteristics listed int he model?, are the sellers price takers, do they compete using price, is the
asked by Laura 
7th grade
I have a critical thinking problem I need help with...you can divide each side of an equation by the same non zero value. Explain what would result from the equation 4 x 0 = 5 x 0 if you could divide each side by zero and if 0/0 = 1.
asked by Hailey 
Calculus
Find the slope of the tangent line to the curve y = (x^2 8)^6 at x = 3, and write the equation of the tangent line.
asked by Preston 
Math.
How Do You Solve 18 m=8? I Don't Even Know Where To Start.
asked by Cheyanne 
calc
(e^7x)/(e^3)^x= e^16
asked by pauly 
english
for classification what word goes with know,think?
asked by suzy 
Calculus
Find f'(x) if f(x) = (ln(x^2+x+1)+2x+3)\ (x^2+1) .
asked by Preston 
Sci
Why is it important to be accurate when measuring or recording data????
asked by Sumaiya 
computer
Think about how computer technology permeates society. Throughout the day, you encounter many types of computerized devices at the grocery store, fast food chains, school, and work. Describe one such device available today: Who uses it, what are they able
asked by Rosalind 
lgebra
How do I solve this litreal equation? Solve q = 1  p for p in terms of q.
asked by myra 
Trig
If b=5 , the angle C=50 and the angle A=50 find the other angle B and the remaining sides and . Give your answer to at least 3 decimal places.
asked by bob 
7th grade
What is the dimension of a rectangle whos perimeter is 42 inches and its area is 104 square inches? Explain.
asked by Leyley 
math
A(3,2) B(8,4)are the ends of the diameter of a circle. the tangent of the circle at point B is 11x+6y+64=0 the line L passes through A and the origin. line L has a gradient of 2/3 what is the coordinates that the line L and tangent at point B cross??
asked by james 
english
compare and contrat your abilities as an academic writer now as opposed to when you began your studies at the University of phoenix. Using four comparatives and four superlatives within responses.
asked by Tamara 
Physics
From the top of a tower is an object with mass 25 kg is lowered at constant speed, 4 m / s with a rope to the ground. After 10 seconds of the rope breaks, and the object falls freely. From the moment (the rope breaks) there are 12 seconds to those standing
asked by Oddbjørn 
Chemistry
A solution made from .650g of an unknown compound in 27.8 g of diphenyl gave a freezingpoint depression of 1.56 degrees C. Calculate the molality of the solution. (Kf for diphenyl is 8 degrees C/m)
asked by Kolby 
Chemistry
A 271mL of a sugar solution containing 1.79g of the sugar has an osmotic pressure of 30.1 mmHg at 35.1 degrees C. What is the molar maas of the sugar?
asked by John 
physics
a cannon fires at a castle. the walls are 9m high. if the cannon is pointed at an angle of 60 degrees and has a muzzle velocity of 35m/s will the cannon balls go over the wall or hit the wall?
asked by Natalie 
algebra/materials engineering
what phases are present in a slow cooled 1090 stell and how much of each of these phases are present? so the phases are cementite and pearlite and it's hypereutectoid. The formula is hypereutectoid=cementite(6.67%)+pearlite(0.8%) I know in a 1090 steel,
asked by Anonymous 
Spanish
Are these both the same: se quitan and quitarse
asked by Amy 
comp 150
English, should be the official language of the united states
asked by Anonymous 
US History
What actions did FDR chose to mobilize the nation for war? What new social and economic choices did American face as the nation became the “arsenal for democracy? What new opportunities and old constraints did woman and minorities encounter on the home
asked by Connie 
physics
5 mL of a liquid have a mass of 1 og what is the density
asked by amy 
math
Jim is able to sell a handcarved statue for $670 which was a 35% profit over his cost. How much did the statue originally cost him?
asked by amelie 
math
How do you simplify 3x/5y+1/7
asked by courtney 
math
the prison popuation of 9 different countries are: 50, 30, 10, 50, 60, 50, 20, 40, 50. What is the range and standard deviation? Explain. I know the range is 50, but i cant figure out the standard deviation.
asked by john 
Algebra II
Complete the box to illustrate the product (x+8)(x+7) __x__________8____    ?  7x  ?     __________ ______       x  x^2  ?     _________________ Help me please! I do not know where to even begin.
asked by Daniel 
marketing
explain the term life cycle
asked by pretty 
communications
Halfway through the process of drafting a memo, Jacob stops to think about how to word his next paragraph. What part of the writing process does this activity represent?
asked by tammy 
science
I need a description of a plant cell and its function. Do you know of any web sites that have this. Thanks
asked by chance 
physics
a marble that is rolling across a lab table has a velocity of 0.7m/s. If the table is 0.9m high, how far from the edge of the table will the ball travel in the horizontel direction before it hits the floor ?
asked by Anonymous 
Calculus
Find the points on the graph of y = (x+1)/ (x+2) where the tangent line is parallel to the line x  y = 2.
asked by Preston 
math
explain who you could show five less than a number using an expression
asked by lena 
math
A(3,2) B(8,4)are the ends of the diameter of a circle. the tangent of the circle at point B is 11x+6y+64=0 the line L passes through A and the origin. line L has a gradient of 2/3 what is the coordinates that the line L and tangent at point B cross??
asked by james 
math
A(3,2) B(8,4)are the ends of the diameter of a circle. the tangent of the circle at point B is 11x+6y+64=0 the line L passes through A and the origin. line L has a gradient of 2/3 what is the coordinates that the line L and tangent at point B cross??
asked by james 
2nd grade
How do you label money ? The coins have the amount in them . I don't understand ?
asked by Brianna 
math
A(3,2) B(8,4)are the ends of the diameter of a circle. the tangent of the circle at point B is 11x+6y+64=0 the line L passes through A and the origin. line L has a gradient of 2/3 what is the coordinates that the line L and tangent at point B cross??
asked by james 
AP psychology
I'm having trouble figuring out this question: Three yr old Marco suffered damage to the speech area of the brain's left hemisphere. Research suggests that a) he will never speak again b) his earlier experiences with speech will enable him to continue
asked by kathleen 
Chemistry
A dilute electrolyte solution is prepared by dissoving iron (III) chloride in water. It is found to have a freezing point of 2.10 degrees C. Calculate the molality of the solution.
asked by Gracyn 
physics
Question part Points Submissions 1 0/1 5/15 Total 0/1 You ride your bike for 1.5 h at an average velocity of 11 km/h, then for 30 min at 15 km/h. What is your average velocity?
asked by Casey 
probability
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 at most 4 will be mutated? b. If microbe from the colony is examined one by one, what is the
asked by lisa 
Calculus
(1 pt) If f(x) = 2 √x, use the definition of derivative to find f′( x ).
asked by Trevor 
12th grade
the constitution and the changes
asked by Anonymous 
science
how many light years is 94.6 trillion killometers
asked by Anonymous 
english
what issues does the scene raise? act.3.sc.4. lines 1150 in the book twelfth night by shakespeare
asked by jennifer 
Math
what is 0.50.0281=g?
asked by Christi 
science
how many electrons at most can occupy a given orbital?
asked by mic 
Algebra
If a function is given and it asks if a point is on the graph. How am I supposed to solve this? Like for example: f(x)= (2x)/(x2) point: (1/2,2/3)
asked by Amy 
Maths Urgent
I have worked out the gradient funtion. If dy/dx = 8x  3x^2 , then how you show that dy/dx is postive when 0
asked by Remy 
french
Could you check these thanks. Directions: Répondez en utilisant un pronom (en). 1. Il y a combien de chambres dans cet hôtel? (cent) Answer: Il y en a cent. 2. Il y a combien de lits dans chaque chambre? (deux) Answer: Il y en a deux 3. Il y a combien de
asked by Rachel 
Social Studies
What is the name of the prime minister in Dominican Republic?
asked by Tandra 
Math
2.592/0.4 Round the quotient to the nearest hundredth
asked by M.P.L 
math
A radius of a circle has end points at O(1,3) and R(2,2). find two possible end points for the diameter that contains this radius. describe any assumptions you make.
asked by Ted 
history
what was the battle of trafalgar?
asked by Emma 
math
my tens digit is 3 more than 5 . my tens digit is double the number of my ones digit . what number am i ?
asked by nich 
english
why is Theodor a hero and why is he so important
asked by sophie 
english
someone can help me with a discription with this KEY WORDS: advertising billboards, buskers, clowns, drama groups, fireworks, graffiti, 'live statues', musicians, openair concerts, pavement artists, sculptures, statues.
asked by julia 
math
8y(2y3)=9
asked by tina 
math
A(3,2) B(8,4)are the ends of the diameter of a circle. the tangent of the circle at point B is 11x+6y+64=0 the line L passes through A and the origin. line L has a gradient of 2/3 what is the coordinates that the line L and tangent at point B cross??
asked by james 
math
A(3,2) B(8,4)are the ends of the diameter of a circle. the tangent of the circle at point B is 11x+6y+64=0 the line L passes through A and the origin. line L has a gradient of 2/3 what is the coordinates that the line L and tangent at point B cross??
asked by james 
math
4+100=
asked by yard 
Math
I need to graph this equation y=(3/2)sin(3x+2ð)3. What would the primary interval be for this problem and how would it appear on a graph?
asked by Annie 
Math
How do you factor m^26m
asked by heather 
4th grade
what are the nouns in the sentence: Ryan will learn to swim this summer.
asked by emma 
trigonometry
how to solve sin 4x= cosx(4 sinx  8 sin ^3x)
asked by cristina 
Algebra, explain?
So I have to solve this problem 9a=6(a+4) And then I wrote down: 9a=6a+24 but I don't know what to do from there, can someone explain to me please?
asked by Allyson 
math
Does absolute value n+m= absolute value n + absolute value m for all integers n and m? If so give examples if not give a counterexample.
asked by m 
math
Thank you  Ms Sue ( math )
asked by Anonymous 
physics
as a ball moves upwards in the air, by how much does its speed decrease each second?
asked by none 
MATH
SHOW IN A SKETCH 3/5 OF AN HOUR
asked by JORDAN 
Algebra
f(x) = (x+2)/(x6) what is the domain of f? How would I find this? without graphing
asked by Amy 
computers
What are bottle geeks
asked by jhoin 
physics
what is seismograph
asked by annonyms 
chemistry
what should i be aware of when heating NH4andCO3
asked by monica 
To Ms. Sue
Ms. Sue could you please take a look at my stress questions, thanks a lot.
asked by Sara 
Math
Given f(x)=72(x1)^2, x>= 1, determine f inverse (5).
asked by Emily 
math
explain how you could show five less than a number using an expression
asked by kayalin 
aerospace
a ballon is in flight for 25 seconds. it took the baloon 7 seconds to reach its maximum height. how lobg was the balloons time of ascent
asked by Anonymous 
Math
what is 9+64x3+12?
asked by Rick 
math
how do you solve 0.32/8.64=
asked by jOSH 
math
the prison popuation of 9 different countries are: 50, 30, 10, 50, 60, 50, 20, 40, 50. What is the range and standard deviation? Explain. I know the range is 50, but i cant figure out the standard deviation.
asked by john 
Fysikk
En gjenstand blir sluppet fra toppen av et tÃ¥rn, det gÃ¥r 12 sekunder fra man slipper gjenstanden til man hÃ¸rer lyden fra stÃ¸tet mot bakken pÃ¥ toppen av tÃ¥rnet. Hvor hÃ¸y er tÃ¥rnet? Lyd hastighegt 334 m/s OddbjÃ¸rn Norwegian
asked by OddbjÃ¸rn 
fun.
why we are laughing sometime so much?
asked by manpreet kaur 
Math 5th
i need help in a hurry!!!!!!! I need to know what the fractionsone half and so on until one fourth us equal to bye tomrrow!!!!!!!!!!! please help!! :)
asked by Avi 
Psysik
From the top of a tower is an object of mass 25 kg lowered at constant speed, 4 m / s with a rope to the ground. After 10 seconds of the rope breaks, and the object falls freely. From the moment (the rope breaks) there is 12 seconds to those standing on
asked by OddbjÃ¸tn 
algebra I
please check my answer 2/3x24 less than/equal to 8 = x less than/equal to 12
asked by Mary 
Social Studies
what you call the people that were in the mayflower ship
asked by Sumaiya 
Math
Simplify. (5x1)/(x1) My textbook says it can't be simplified any further. But can't it be simplified to 5?
asked by John 
Organic Chemistry I
You have isolated one of the isomeric dimethylcyclopentanes. on reaction it gives you 3 monochloroisomers, which of the possible pentanes is it? How do i do this? they don't give any choices, so how do i figure it out?
asked by Nick 
English
The best way to get there is to take the bus. In this sentence is the infinitive phrase "to take" an adjective?
asked by Jake 
Physics 11
A river has a current of 5 m/s. A boat tries to head directly across at 4 m/s. When the boat reaches the other side it is 30m downstream. How wide is the river ?
asked by Denny 
chem lab
ok i have to plot a graph for my kinetics our teacher said in the end it'd the end the graph would give me numbers like this, y = 1.3x10^2x11.2 r^2 = 1 but when i plot it, i get weird numbers. am i supposed to plot exponents as i wrote them below? also
asked by jessie 
trig
f(x)= 2sec(x3.14/4)1
asked by rlw 
Algebra, ( Check please)
5h7=2(h+1) I got, 5h7=2h+1 and then I added 7 plus 1, and got 6 So 5h6=2h? Could someone explain what I did wrong and help me correct it?
asked by Allyson 
physics
as a ball moves upwards in the air, by how much does its speed decrease each second?
asked by none 
math
How do you simplify: a/b^2+a^3/b^31/b
asked by courtney 
7th grade
I have a critical thinking problem I need help with...you can divide each side of an equation by the same non zero value. Explain what would result from the equation 4 x 0 = 5 x 0 if you could divide each side by zero and if 0/0 = 1.
asked by Hailey 
math
explain in words how to solve 39 + five squared  96 * 7 / (9  4)
asked by kim 
English
What do each set of words have in common? swallows root penned slops
asked by Joyce 
12th grade
a marble that is rolling across a lab table has a velocity of 0.7m/s. If the table is 0.9m high, how far from the edge of the table will the ball travel in the horizontel direction before it hits the floor ?
asked by Anonymous 
Math
how many pounds equal one ton?
asked by Doris 
social studies
absolute location of arctic? wat cultures are there in the arctic?
asked by fdsa 
arithmetic
graphing/rounding discmals
asked by Meranda 
Science
what is the mass of one millilitre of water?
asked by Pratigya 
pre calc
(4^x2)^2 mulipled by 1/(4^5x)=64
asked by sarah 
algebra
explain how you could show five less than a number using an expression
asked by lena 
Math
determine the force required in A and B in the figure on the worksheet to hold steady the 100 kg load pictured. Hint: The vertical components of A and B combined will hold the load
asked by Tony 
English
I still have a few doubts about these sentences. I really hope you can have a look at them. I like wearing casual clothes and also sports clothes. (corrections: and sports clothes too/ as well as sports clothes) 2) I'm holding/carrying a hiking pole
asked by Franco 
5th grade
what are 4 possible tuneups to help you keep a postive attitude?
asked by richard 
Physics
A 200N force acts on a 30kg mass on a horizontal surface against 50N of friction. What is the speed of the mass after 5 seconds?
asked by Teah 
chemistry
Calculate number of moles of aluminum in 1.50kg of Al
asked by Samantha 
5th grade
how to keep a watershed heathly?
asked by alex 
math
write an expression.there were22 students in the clsass but some were absent
asked by JOSH 
Math
what is y12=16?
asked by Lexi 
math
if t is 30% of u and u is 60% of v, what is the percent of v is t?
asked by Taylor 
calc
(e^x)e^x+1)/(e^x1)=8
asked by Vinny 
math
find the value of expression 5+2+6 (87)+1 6(3+1)
asked by josh 
history
how did napoleon declare himself emperor?
asked by Emma 
Social Studies
What are the 3 terms given to the U.S. system of economics?
asked by Steve 
english
help me please with one sentence with ''uptodate ''
asked by Anonymous 
math
tayior uses squares to make a pattern which square is not in her psttern
asked by yard 
Math
How do you factor 16x^2
asked by heather 
social studys
how does the united states system differ from england's armed forces?
asked by destiny 
history
what was napolean like in the north america?
asked by Emma 
history
what was the battle austerlitz?
asked by Emma 
math check
How does this c(c2)c1(c+3) come to 34c?
asked by heather