Saturday

July 23, 2016
Number of results: 85,348

**physics**

A certain force gives an object of mass m1 an acceleration of 13.0 m/s2 and an object of mass m2 an acceleration of 2.10 m/s2. What acceleration would the force give to an object of mass (a)m2 – m1 and (b)m2 + m1?
*October 9, 2010 by koraile*

**Math Homework**

1) Given the side of a square pyramid is 6cm and the altitude is 4cm calculate the surface area. 2) Given the side of a square pyramid is 12cm and the altitude is 8cm calculate the surface area. 3) Given the side of a square pyramid is 18cm and the altitude is 12cm calculate ...
*February 6, 2007 by Student*

**physics**

A 640 N student stands on a bathroom scale in an elebator. As the elevator starts moving, the scale reads 800 N. a) find the acceleration of the elevator (magnitude and direction) b) acceleration if the scale reads 450N? c) If the scale reads 0 should the student worry? ...
*November 16, 2006 by Christina*

**chemistry**

to what temperature must a given mass of nitrogen at zero degree be heated so that both it volume and pressure will be doubled
*April 22, 2016 by YUZARSIF*

**Physics**

Calculate the pressure exerted by 75 cms of vertical length of a water column in SI units. Options: A. 7390Pa. B. 7560Pa. C. 7250Pa. D. 7350Pa.
*November 5, 2015 by G. Samuel Frank*

**calculus 3**

A ball is thrown northward into the air from the origin in three dimensional space ( the xy plane is the ground, the positive y-axis points north, positive x-axis is east and the positive z – axis is height above the ground ). The initial velocity of the ball is V0 = < 0,80...
*October 4, 2010 by cano*

**I need 2 fix these prob. b4 they get 2me on test!**

A father gives his son a ride by pulling a sled across the rough snow. The father runs across the snow with a constant acceleration while pulling the sled at F = 75.0 N, at 30 deg. above the horizontal. The combined mass the sled and son is 30.0 kg. The coefficient of kinetic ...
*February 20, 2007 by Matt (Newton's laws)*

**physics**

whenever two Apollo astronauts were on the surface of the moon, a third astronaut orbited the moon, assume the orbit to be circular and 100 km above the surface of the moon, where the acceleration due to gravity is 1.52 m/s^2. the radius of the moon is 1.70* 10^6 m.(a) ...
*March 10, 2011 by Anonymous*

**physics**

whenever two Apollo astronauts were on the surface of the moon, a third astronaut orbited the moon, assume the orbit to be circular and 100 km above the surface of the moon, where the acceleration due to gravity is 1.52 m/s^2. the radius of the moon is 1.70* 10^6 m.(a) ...
*October 25, 2011 by carlton*

**PHYSICS**

A crate is pushed horizontally with a force. The acceleration of gravity is 9.8 m/s2 . Calculate the acceleration of the crate. Answer in units of m/s2 1570 N 198 kg μ = 0.44
*December 18, 2013 by RACHEL*

**chemistry**

What are the parameters of a sample of gas that are all interrelated and affect each other when any one of them changes? A. Pressure, volume, number of moles, and temperature B. Shape, hardness, transparency, and odor C. Mass, density, color, volume, and pressure D. ...
*March 24, 2015 by Cortney*

**bobpursley**

ok im doing my physics homework and we have to submit the answers online. i keep getting these questions wrong and i only have one more try can someone please tell me how to work it? a 2.5 kg otter starts from rest at the top of a muddy incline 94.6 cm long and slides down to ...
*October 15, 2008 by Claudia*

**chemistry**

Can someone please tell me the tools needed to measure amount of substance, area, volume, density, energy, and pressure? Thanks in advance! It depends on what you are measuring and the quantity. For amount of substance, the mass can be measured with a balanace for relatively ...
*September 27, 2006 by Boromir*

**Geometry**

I'm not sure how to complete a two-column proof: Given <2=<4,m<2=100 Prove:m<3=70 All i have so far: <2=<4, m<2=100 : Given M<2 =m <4 :definition of congruent angles M<4=110 : ? M<3+m<4= 180 : ? M<3=70 : ? This is so stressful, please hep!
*November 2, 2015 by Amanda*

**math 6 rule pattern**

The same rule is used on each of these number column A to get the numbers in Column B. COlumn A B -3 -5 0 1 3 3 6 13 Which could be the rule? Multiply by 2, then add 1 add 1 Subtract 2 Multiply by 3, then add 4 I picked that last one, But I know I am wrong. Help?
*May 21, 2014 by moby*

**organic chemistry **

how do the flow rate of the carrier gas and the column temperature affect the retention time of a cocmpound on a GC column
*October 23, 2012 by lyly*

**science**

The two tables below give the relative-risk of developing a stroke, in relation to blood pressure and body mass index. The data are based on a population of men from the USA. The values in the first table are given in comparison with the total population. The values in the ...
*October 31, 2013 by sam ????????????????????*

**Pre-Calc**

Could someone please check these-I had tried one last night but it was really wrong so I'm been working-hopefully these are correct. What are the roots of the equation and answers have to be simplified 2x^2 + 5x-10 =0 2x^2 + 5x-10+10=0+10 2x^2 + 5x = 10 2x^2 + 5x/2 = 10/2 2x^2...
*September 7, 2011 by Sheila*

**physic**

Given: Compressor speed is 1500rpm. The compressor has a bore of 3.125 in, a stroke of 3.26in and a connecting rod crank ratio to 3.5. Inlet pressure is atmospheric 14.7 psia, peak cylinder pressure is 132psia, and mean active pressure mep is 26psia. Flow is 8.9 cfm at mep, ...
*August 12, 2012 by zenden*

**PHYSICS**

a car has a mass of 1200kg.The area of the tire in contact with the ground is .02m^2. What is the pressure of each tire?
*October 1, 2015 by LL*

**Chemistry**

A gas sample containing only SO2, PF3 and SF6 has the following mass percent composition: 30.4% SO2 and 28.4% PF3. Calculate the partial pressure (atm) of SO2 if the total pressure of the sample is 676.4 torr. I tried taking the total pressure in atm and multiplying it with ...
*April 4, 2010 by Luc*

**Physics**

A skier of mass 71.0 kg is pulled up a slope by a motor-driven cable. How much work is required to pull the skier 62.2 m up a 37.0 slope (assumed to be fric- tionless) at a constant speed of 2.0 m/s? The acceleration of gravity is 9.81 m/s2 .
*January 9, 2012 by Aly*

**Physics**

A person is standing on a spring bathroom scale on the ﬂoor of an elevator which is moving up and slowing down at the rate of 2.73 m/s^2. The acceleration of gravity is 9.8 m/s^2. If the person’s mass is 75.2 kg, what does the scale read? Answer in units of n
*September 24, 2012 by sam*

**AP Physics**

A curve in a road is banked. There is a car on the curve. What is the component of its weight parallel to the incline? The acceleration of gravity is 9.8 m/s 2 . Answer in units of N Mass of Car: 1.5Mg coefficient of friction: 0.17 theta: 25 degrees
*October 31, 2012 by Noah*

**Thermodynamics**

Consider an ancient, rigid, but sealed jar resting 80 ft below the surface of the ocean. If the specific gravity of sea water is 1.025 and the barometric pressure is 14.7psia, determine the absolute pressure acting on the jar (in psia).
*July 13, 2015 by J.T.*

**Physics**

A fireman, 43.7 m away from a burning building, directs a stream jet of water from a ground level fire hose at an angle of 31.3 degree above the horizontal. If the speed of the stream as it leaves the hose is 44.1 m/s, at what height will the stream of water strike the ...
*October 12, 2015 by Luma*

**ap physics**

On a frozen pond, a 7 kg sled is given a kick that imparts to it an initial speed of 3.1 m/s. The coefficient of kinetic friction between sled and ice is 0.15. The acceleration of gravity is 9.8 m/s2 . Find the distance the sled moves before coming to rest. Answer in units of m.
*February 25, 2011 by anna*

**physics**

On a frozen pond, a 10 kg sled is given a kick that imparts to it an initial speed of 6.2 m/s. The coefficient of kinetic friction between sled and ice is 0.14. Find the distance the sled moves before coming to rest. The acceleration of gravity is 9.8 m/s^2. Answer in units of m.
*November 28, 2015 by luma*

**Engineering Physics**

An ideal gas at 12.1 °C and a pressure of 2.38 x 105 Pa occupies a volume of 2.88 m3. (a) How many moles of gas are present? (b) If the volume is raised to 4.70 m3 and the temperature raised to 28.3 °C, what will be the pressure of the gas?
*May 22, 2013 by kurt*

**Physics **

Object A is moving due east, while object B is moving due north. They collide and stick together in a completely inelastic collision. Momentum is conserved. Object A has a mass of mA = 17.0 kg and an initial velocity of VoA = 8.15 m/s, due east. Object B, however, has a mass ...
*March 5, 2015 by Jennifer*

**physics**

It the specific gravity of mercury is 13.6 and the atmospheric pressure is 70cm of mercury, what is the total pressure of the gas supply in cm of water if the height of water is increase by 3cm?
*May 13, 2014 by VICTOR*

**PHYSICS Gr. 11**

A of car of mass 2000 kg has a force forward due to the engine of 4500N and experiences an air resistance of 1500N. IF we ignore the friction with the road, what is the acceleration of this car? thanx :)
*April 15, 2010 by Anonymous*

**physics**

A thin, light string is wrapped around the rim of a 4.00kg solid uniform disk that is 30.0cm in diameter. A person pulls on the string with a constant force of 100N tangent to the disk. Find the linear acceleration of its center of mass. If the disk is replaced by a hollow ...
*April 12, 2008 by Erin*

**Physics**

1. The problem statement, all variables and given/known data A student pulls on a box up an incline of 10 degrees. The student pulls with a force of 180 N directed at 30 degrees above the line of the incline. The box has a mass of 28 kg, and the coefficient of friction between...
*October 7, 2007 by Tim*

**physics**

Shawn and his bike have a total mass of 57.1 kg. Shawn rides his bike 1.3 km in 14 min at a constant velocity. The acceleration of gravity is 9.8 m/s 2 . What is Shawn’s kinetic energy?
*January 19, 2015 by anthony*

**Physics**

On a mass of 100 kg, a force of 120 N acts right and at an angle of 30 degrees to the horizontal. If the coefficient of sliding friction is .1 what is the acceleration of the mass? Net force= mass*acceleration Horizontal force -frictionalforce = mass*acceleration 100N* cos30...
*August 21, 2006 by Tiff*

**Physics**

A 747 jetliner lands and begins to slow to a stop as it moves along the runway. If its mass is 3.50 x 105 kg, its speed is 27.0 m/s, and the net braking force is 4.73 x 105 N. (a) What is its speed 7.50 s later? (b) How far has it traveled in this time? (a) Its speed 7.50 s ...
*October 12, 2012 by Emma*

**Physics**

In mathematical language, Newton's Law of Gravity expresses the force of gravity, F, between two objects in the following way: F= (GMm)/r^2 where M is the mass of one object, m is the mass of the other object, r is the distance between the two objects, and G is the ...
*September 22, 2011 by Adam *

**Neutons Thrid law**

3. A force of 36 N gives a mass m1 an acceleration of 4.0 m/s2. The same force gives a mass m2 an acceleration of 12 m/s2. What acceleration will this force give to m1 and m2 if the two masses are fastened together? {3.0 m/s2}
*April 8, 2016 by Jen*

**physics**

On Earth a baseball player can hit a ball 120 m by giving it an initial angle of 45° to the horizontal. Take the acceleration due to gravity as g=10 ms^-2 Suppose the batter repeats this exercise in a space 'habitat' that has the form of a circular cylinder of radius R = 10 km...
*December 2, 2013 by Yasin*

**Physics **

An inventive child named Chris wants to reach an apple in a tree without climbing the tree. Sitting in a chair connected to a rope that passes over a frictionless pulley, Chris pulls on the loose end of the rope with such a force that the spring scale reads 265 N. Chris’s true...
*October 22, 2012 by Amelia *

**Physics**

An inventive child named Chris wants to reach an apple in a tree without climbing the tree. Sitting in a chair connected to a rope that passes over a frictionless pulley, Chris pulls on the loose end of the rope with such a force that the spring scale reads 265 N. Chris’s true...
*October 22, 2012 by Courtney *

**Science**

What is the pressure at the bottom of a tube of mercury that is 0.2 m deep? An elephant with a mass of 1000 kg stands on a circus platform that weighs 50 kg. The area of the bottom of the platform is 1.25 m². How much pressure is exerted on the floor beneath the platform? Two ...
*September 15, 2011 by Erica*

**Physics**

A Force 5N gives a mass M an acceleration of 8m/s-2 and m an acceleration of 24m/s-2. What is the acceleration if both the masses are tied together?
*July 29, 2012 by Anupam Khatiwara*

**Physics**

I drink from a glass of water with a vertical straw. What's the longest straw I can use and still drink water if the ambient pressure is 1 atm? Give your answer in meters. Details and assumptions 1 atm is 101,325 Pa. The acceleration of gravity is −9.8 m/s2. The density ...
*May 6, 2013 by Mathslover Please help*

**chemistry**

carbon dioxide (CO2) gas is produced as a result of the reaction between calcium carbonate and hydrochloric acid. The gas that is produced is collected in a 20 dm3 container. The pressure of the gas is 105 kPa at a temperature of 20 C. What mass of carbon dioxide was produced?
*April 14, 2015 by carmen*

**physics**

If you dive to a depth of 10m below the surface of a lake, Part A what is the pressure due to the water alone? What is the absolute pressure at that depth?
*April 10, 2014 by bety*

**physics**

A pendulum consists of an object of mass 1.07 kg that hangs at the end of a massless bar, a distance 1.14 m from the pivot point. Calculate the magnitude of the torque due to gravity about the pivot point if the bar makes an angle of 22° with the vertical.
*October 9, 2008 by Ellen*

**Mcmaster**

A pendulum consists of an object of mass 2.26 kg that hangs at the end of a massless bar, a distance 2.02 m from the pivot point. Calculate the magnitude of the torque due to gravity about the pivot point if the bar makes an angle of 54° with the vertical.
*March 7, 2012 by Gabbie*

**Physics..HELP PLEASE!!**

Here's a neat trick. If your average ceramic bowl has a mass of 200 g, what is the difference in Newtons between the weight of the bowls on the top of her head before and after she does the trick? Details and assumptions The acceleration of gravity is −9.8 m/s2.
*May 3, 2013 by Oian*

**physics**

Calculate the pressure in newtons per square meter due to whole blood in an IV system, such as the one shown in Figure 6.9, if h = 1.5 m. (b) Noting that there is an open tube, so that atmospheric pressure is exerted on the blood in the bottle, calculate the total pressure ...
*April 22, 2013 by Anonymous*

**science**

A frictionless pulley with zero mass is attached to the ceiling, in a gravity field of 9.81 m/s2. Mass M2 = 0.15 kg is being accelerated downward at 1.5 m/s2. Calculate the mass M1.
*November 19, 2010 by lia*

**Physics**

Hey can someone help, im having trouble converting alot. IP The weight of your 1440 kg car is supported equally by its four tires, each inflated to a gauge pressure of 30.0 lb/in^2. What is the area of contact each tire makes with the road? What gauge pressure is required to ...
*December 3, 2009 by Elizabeth*

**Science**

A hockey puck is given an initial speed of 30 m/s on a frozen pond. The puck remains on the ice and slides 130 m before coming to rest. The acceleration of gravity is 9.8 m/s^2 . What is the coefficient of friction between the puck and the ice?
*October 3, 2012 by Daniel Tavera*

**physics**

A string connecting a car of a certain mass, x1, on an air track is connected to another mass, x2, by a string over a pulley. If the string has appreciable mass will the car still undergo constant acceleration? Explain. I think it will still undergo a constant acceleration, ...
*February 11, 2012 by Emily*

**physics**

A string connecting a car of a certain mass, x1, on an air track is connected to another mass, x2, by a string over a pulley. If the string has appreciable mass will the car still undergo constant acceleration? Explain. I think it will still undergo a constant acceleration, ...
*February 11, 2012 by Emily*

**physics**

A person can jump a horizontal distance of 2.59 m on the Earth. The acceleration of gravity is 11.8 m/s2 . How far could he jump on the Moon, where the free-fall acceleration is 0.297g? Answer in units of m
*March 8, 2012 by Tina*

**physics**

apollo astronaunts took a nine iron to the moon and hit a golf ball about 180 m ! Assuming that the swing, launch angle, and so on, were the same as on earth where the same astronaut could hit it only 35 m, estimate the acceleration due to gravity on the surface of the moon. (...
*January 5, 2012 by taylor*

**physics**

One end of a massless coil spring is suspended from a rigid ceiling. It is found that when a 3.3 kg mass is suspended from it the spring stretches 105 mm when the mass comes to rest. (a) What is the spring constant for the spring? (b) If the mass is then pulled down an ...
*November 1, 2011 by Austin*

**Physics**

A box is given a quick push so that it slides along a horizontal floor. a) What is its acceleration if the coefficient of kinetic friction is 0.30? b) How far will it travel if its initial speed was 3.0m/s? Is it possible to find the acceleration when only one piece of ...
*February 1, 2010 by sh*

**Physics**

An arrow is shot at an angle of above the horizontal. The arrow hits a tree at an angle 45 degrees horizontal distance D = 220 away, at the same height above the ground as it was shot. Use g = 9.8 for the magnitude of the acceleration due to gravity. Please provide formulas ...
*September 28, 2012 by Nami*

**Physics**

A certain force gives mass m1 an acceleration of 13.0 m/s2 and mass m2 an acceleration of 3.6 m/s2. 1) What acceleration would the force give to an object with a mass of (m2-m1)? 2) A certain force gives mass m1 an acceleration of 13.0 m/s2 and mass m2 an acceleration of 3.6 m...
*February 21, 2015 by Jordan*

**calculus 2**

An object thrown in the air on a planet in a distant galaxy is at height s(t) = -20t^2 +67t +42 feet at time t seconds after it is thrown. a) From what height was the object thrown? b) With what velocity was the object thrown? c) What is the acceleration due to gravity on this...
*January 31, 2013 by Rachel*

**Physics**

A high diver of mass 69.4 kg jumps off a board 9.6 m above the water. The acceleration of gravity is 9.8 m/s2.If his downward motion is stopped 2.21 s after he enters the water, what average upward force did the water exert on him? Answer in units of N
*October 15, 2011 by Neha*

**physics**

A block is at rest on the incline shown in the figure. The coefficients of static and kinetic friction are µs = 0.4 and µk = 0.34, respectively. The acceleration of gravity is 9.8 m/s. What is the largest angle which the incline can have so that the mass does not slide down ...
*September 22, 2015 by king*

**phy**

1 What is the gravitational field strength at a height h above the surface of the Earth? R is the radius of the earth gR2(R+h)2 gR(R+h) Rg(R−h) R2g(R−h)2 2 The instrument used for experimental determination of the value of the universal gravitational constant G is ...
*January 28, 2013 by christ*

**physics**

1 What is the gravitational field strength at a height h above the surface of the Earth? R is the radius of the earth gR2(R+h)2 gR(R+h) Rg(R−h) R2g(R−h)2 2 The instrument used for experimental determination of the value of the universal gravitational constant G is ...
*February 12, 2014 by nandeve*

**Physics**

In the figure below, a small block of mass m = 0.034 kg can slide along the frictionless loop-the-loop, with loop radius 8 cm. The block is released from rest at point P, at height h = 7R above the bottom of the loop. (For all parts, answer using g for the acceleration due to ...
*February 27, 2013 by Rachel*

**Physics**

Use the following numbers for this question. MEarth 5.98e+24 kg MJupiter 1.9e+27 kg MSun 2e+30 kg Earth-Sun distance 150000000000 m Jupiter-Sun distance 778000000000 m rE 6380000 m rJ 69000000 m G = 6.67e-11 Nm2kg-2 the acceleration due to gravity at the surface of Jupiter has...
*November 18, 2012 by Anonymous*

**physics energy**

A potential function is given by U(x) = 18 x^2. What will be the acceleration (in meters/second ^2) of a 8.00 kg mass, when it is at the position x = 0.500 m?
*April 13, 2012 by bob*

**physic**

1.What is the gravitational force between two trucks, each with a mass of 2.0 x 10^4 kg, that are 2.0 m apart? (G = 6.673 x 10^11 N•m^2/kg^2) 2.Each tire of an automobile has an area of 0.026 m^2 in contact with the ground. The weight of the automobile is 2.6 10^4 N. What is ...
*December 17, 2006 by Jan*

**chemistry**

A sample of chlorine gas is collected by water displacement at 23C. If the atmospheric pressure is 751 torr, what is the partial pressure due to the chlorine?
*March 14, 2013 by Jo*

**Psy**

Complate the following chart. The first column shows the name of a research method used in psychology.In the second column, write a brief description of that research method. In the column, provide a situation when this method could be applied. Scientific method, Case study ...
*January 25, 2011 by Nan*

**Physics-Gravity**

A 17.0-kg satellite has a circular orbit with a period of 2.31 h and a radius of 9.10×106 m around a planet of unknown mass. If the magnitude of the gravitational acceleration on the surface of the planet is 8.10 m/s2, what is the radius of the planet?
*July 17, 2010 by Anna*

**Physics**

Shawn and his bike have a total mass of 58.5 kg. Shawn rides his bike 0.54 km in 17.2 min at a constant velocity. The acceleration of gravity is 9.8 m/s^2. What is Shawn’s kinetic energy? Answer in units of J.
*March 15, 2014 by mallak*

**Science, please check my answer Ms Sue!**

How does a hurricane form? a.)It forms over a warm ocean water as a low-pressure area*** b.) it forms over a warm ocean as a high-pressure area. c.) it forms over cool ocean water as a low-pressure area d.) it forms over a cool ocean water as a high-pressure area. My answer is...
*May 14, 2015 by Carla*

**physics**

a heavy object is dropped from the top of a 25 m tall building and it reaches the ground in 2.26 seconds determine the acceleration due to gravity how far did the object fall during the first second how far did the object fall during the 2nd second
*July 14, 2016 by glenn*

**College Physics**

A boy of mass 64.1 kg is rescued from a hotel fire by leaping into a firefighters' net. The window from which he leapt was 7 m above the net. The firefighters lower their arms as he lands in the net so that he is brought to a complete stop in a time of 0.40 s. Ignore air ...
*October 15, 2009 by Megan*

**Chemistry 105**

What is the pressure in a 10.0-L cylinder filled with 0.470 mol of nitrogen gas at a temperature of 329 K?
*October 23, 2011 by JULIE*

**PHYSICS**

Two forces, one four times as large as the other pull in the same direction a 10kg mass and impart to it an acceleration of 2.5 m/s^2. if the smaller force is removed. what is the acceleration of the mass?
*November 23, 2015 by Camz*

**accounting -annual amount**

The exhaust-gas temperature leaving a continuously operating furnace is 260°C, and a proposal is being considered to install a heat exchanger in the exhaust-gas stream to generate low-pressure steam at 105°C. the question to be investigate is whether it is economical to ...
*November 18, 2010 by Alicia*

**accounting -annual amount**

The exhaust-gas temperature leaving a continuously operating furnace is 260°C, and a proposal is being considered to install a heat exchanger in the exhaust-gas stream to generate low-pressure steam at 105°C. the question to be investigate is whether it is economical to ...
*November 18, 2010 by Alicia*

**Physics (Mathmate)**

When a force is applied to an object with mass equal to the standard kilogram, the acceleration of the mass is 3.25 m/s2. When the same magnitude force is applied to another object, the acceleration is 2.75 m/s2. What is the mass of the object? What would the second object's ...
*June 15, 2010 by Sarah*

**chemistry**

thank you for any help possible. Given a Mass Percent 13.3% and a Mass Solvent of 325.2 g, find Mass of Solute and Mass of Solution. Mass%=13.3% Mass solvent= 325.2g solve for the Mass solute and Mass solution. This is all the information I am given.
*December 4, 2011 by ben 16*

**PLEASE HELP!**

A city planner is working on the redesign of a hilly portion of a city. An important consideration is how steep the roads can be so that even low-powered cars can get up the hills without slowing down. It is given that a particular small car, with a mass of 1110 kg, can ...
*October 1, 2006 by Haley*

**Physics **

Determine the fuel needed to safely land a spacecraft. Start at y = 100km. Landing is y = 0km. Vy < 25 m/sec is a safe landing speed. g = -1.354 m/s^2 Acceleration due to thrust (where fuel used is 100 kgs*Ay-thrust Amax = 30 m/s^2 Amin = 5 m/s^2 What I dont understand is ...
*December 4, 2012 by Mike*

**Physics**

Object A is moving due east, while object B is moving due north. They collide and stick together in a completely inelastic collision. Momentum is conserved. Object A has a mass of mA = 17.9 kg and an initial velocity of = 8.82 m/s, due east. Object B, however, has a mass of mB...
*November 4, 2012 by Tim*

**physics**

Object A is moving due east, while object B is moving due north. They collide and stick together in a completely inelastic collision. Momentum is conserved. Object A has a mass of mA = 17.5 kg and an initial velocity of = 8.50 m/s, due east. Object B, however, has a mass of mB...
*October 10, 2013 by Ray*

**Physics**

A 4.52 kg block slides down a smooth, fric- tionless plane having an inclination of 31◦ . The acceleration of gravity is 9.8 m/s2 . Find the acceleration of the block. Answer in units of m/s2.
*October 16, 2010 by Alejandra*

**Physics**

A hockey puck is hit on a frozen lake and starts moving with a speed of 12.2 m/s. Ex- actly 6.70 s later, its speed is 6.20 m/s. The acceleration of gravity is 9.81 m/s2 . a) What is its average acceleration? Answer in units of m/s2
*February 3, 2014 by Charlie*

**Physics!**

Two skaters, a man and a woman, are standing on ice. Neglect any friction between the skate blades and the ice. The mass of the man is 81 kg, and the mass of the woman is 60 kg. The woman pushes on the man with a force of 50 N due east. Determine the acceleration (magnitude ...
*February 2, 2011 by Tiffany*

**Physics**

Two skaters, a man and a woman, are standing on ice. Neglect any friction between the skate blades and the ice. The mass of the man is 81 kg, and the mass of the woman is 60 kg. The woman pushes on the man with a force of 50 N due east. Determine the acceleration (magnitude ...
*February 3, 2011 by Tiffany*

**PHYSICS**

Two skaters, a man and a woman, are standing on ice. Neglect any friction between the skate blades and the ice. The mass of the man is 95 kg, and the mass of the woman is 55 kg. The woman pushes on the man with a force of 57 N due east. Determine the acceleration (magnitude ...
*October 21, 2011 by TVIX*

**physical**

Two skaters, a man and a woman, are standing on ice. Neglect any friction between the skate blades and the ice. The mass of the man is 84 kg, and the mass of the woman is 68 kg. The woman pushes on the man with a force of 50 N due east. Determine the acceleration (magnitude ...
*February 13, 2013 by Tara*

**Physics 1**

Two skaters, a man and a woman, are standing on ice. Neglect any friction between the skate blades and the ice. The mass of the man is 85 kg, and the mass of the woman is 53 kg. The woman pushes on the man with a force of 58 N due east. Determine the acceleration (magnitude ...
*February 11, 2014 by Anonymous*

**PHYSICS**

Two skaters, a man and a woman, are standing on ice. Neglect any friction between the skate blades and the ice. The mass of the man is 88 kg, and the mass of the woman is 58 kg. The woman pushes on the man with a force of 56 N due east. Determine the acceleration (magnitude ...
*October 4, 2015 by Anonymous*

**Physics B**

Objects with masses of 105 kg and 528 kg are separated by 0.482 m. A 41.1 kg mass is placed midway between them. 0.482 m b b 105 kg 41.1 kg 528 kg Find the magnitude of the net gravitational force exerted by the two larger masses on the 41.1 kg mass. The value of the universal...
*November 6, 2012 by a friend*

**physics**

7. No work is done by gravity on a bowling ball resting or moving on a bowling alley because the force of gravity on the ball acts perpendicular to the surface. But on an incline, the force of gravity has a vector component parallel to the alley. Discuss the two ways this ...
*April 2, 2013 by Anonymous*

**physics**

An electron is a subatomic particle (m = 9.11 x 10-31 kg) that is subject to electric forces. An electron moving in the +x direction accelerates from an initial velocity of +7.93 x 105 m/s to a final velocity of 2.90 x 106 m/s while traveling a distance of 0.0904 m. The ...
*September 24, 2010 by char*

**physics**

An electron is a subatomic particle (m = 9.11 10-31 kg) that is subject to electric forces. An electron moving in the +x direction accelerates from an initial velocity of +5.21 105 m/s to a final velocity of +2.29 106 m/s while traveling a distance of 0.034 m. The electron's ...
*February 9, 2012 by Natasha*