Saturday

April 19, 2014

April 19, 2014

Number of results: 20

**pyhsics**

Where are you stuck on this?
*Tuesday, March 15, 2011 at 6:14pm by bobpursley*

**pyhsics**

sd,, basically u wanna poo[p on dat lol
*Tuesday, April 6, 2010 at 10:30am by jimmydean*

**pyhsics**

I think I got it... you do two seperate calculations, one w/ each mass
*Tuesday, April 6, 2010 at 10:30am by sherri*

**pyhsics**

never mind, i figured out how to do this problem 1. K = 11J 2. v = 9.1m/s 3. W = 14J the wording was just alittle bit confusing
*Tuesday, March 15, 2011 at 6:14pm by Alan*

**Pyhsics**

A 0.02 kg-lead bullet traveling 200 m/s strikes an armor plate and comes to a stop. If all of it's energy is converted to heat that it absorbs, what is the temperature change?
*Saturday, June 25, 2011 at 11:08pm by Anonymous*

**pyhsics**

Ar = v^2/r F = m Ar
*Saturday, January 25, 2014 at 10:01am by Damon*

**Pyhsics**

The force of repulsion that two like charges exert on each other is 3.0 N. What will the force be if the distance between the charges is increased to 3 times its original value?
*Saturday, March 17, 2012 at 9:35pm by Cookie*

**AP PYHSICS**

A projectile is fired from the surface of the Earth with a speed of 150 meters per second at an angle of 45 degrees above the horizontal. If the ground is level, what is the maximum height reached by the projectile?
*Monday, October 1, 2012 at 6:02pm by Liz*

**pyhsics**

A 3 kg ball is traveling in a circle of radius 2 meters with a tangential velocity of 2 meters/second. Find the centripetal of the ball and the centripetal force acting on it.
*Saturday, January 25, 2014 at 10:01am by Dwayne*

**Pyhsics**

A sled slides down a snow-covered hill at CONSTANT SPEED. If the hill makes an ANGLE of 10degrees ABOVE THE HORIZONTAL, WHAT IS THE COEFFICIENT OF KINETIC FRICTION BETWEEN THE SLED AND THE SNOW? ~>HELP!
*Monday, October 19, 2009 at 9:20am by Shane*

**pyhsics**

The top floor of a building is 40m m above the basement. Calculate how much greater the water pressure is in the basement than on the top floor. Express your answer to two significant figures and include the appropriate units.
*Thursday, April 3, 2014 at 2:08pm by Phil*

**pyhsics**

I'm actually trying to do this problem right now. I'm a bit stuck on the second part. How do you find the speed of the object at t = 2.0s? Every kinematic equation I've tried to use requires acceleration, and I can't find acceleration with having the final velocity... ahhh.
*Tuesday, March 15, 2011 at 6:14pm by Mara*

**pyhsics**

A ball with a mass of 0.8 kg is kicked up the ramp with an initial speed of 22 m/s. What is the speed [m/s] of the ball at the top assuming no friction? Angle from which ball is kicked is 23 degrees and the horizontal leg is 7 feet long.
*Tuesday, October 18, 2011 at 9:17am by Jimmy*

**pyhsics**

Hint: the elevation change of the ball is H = 7 ft*0.3048 m/ft*tan 23 = 0.906 m The PE gain is M g H Subtract the PE gain from the initial KE to get the final KE. They use that for the speed at the top
*Tuesday, October 18, 2011 at 9:17am by drwls*

**pyhsics**

A 1kg projectile is fired at 10m/s from a 10kg launcher. The momenta of the projectile and the launcher have teh same magnitude, but opposite directions. Show that the KE of teh projectile is 10 times gerater that the KE of the recoiling launcher. KE = 1/2mv^2? do you add the ...
*Tuesday, April 6, 2010 at 10:30am by sherri*

**pyhsics**

M1 V1 = M2 V2 = P (momentum of each) KE1 = (1/2)M1V1^1 = (1/2)P^2/M1 KE2 = (1/2)M2V2^2 = (1/2)P^2/M2 KE1/KE2 = M2/M1
*Tuesday, April 6, 2010 at 10:30am by drwls*

**pyhsics**

At t= 1.0s, a 0.61 kg object is falling with a speed of 6.0 m/s. At t= 2.0s, it has a kinetic energy of 25 J. 1. What is the kinetic energy of the object at t= 1.0s? 2. What is the speed of the object at t= 2.0s? 3. How much work was done on the object between t= 1.0s and t= 2...
*Tuesday, March 15, 2011 at 6:14pm by Alan*

**pyhsics**

A cannonball is shot (from ground level) with an initial horizontal velocity of 36.0 m/s and an initial vertical velocity of 21.0 m/s. 1) What is the initial speed of the cannonball? 2) What is the initial angle θ of the cannonball with respect to the ground? 3) What is ...
*Saturday, September 8, 2012 at 2:40pm by ali*

**pyhsics**

So I already got the answer for the first part: An airplane is flying in a horizontal circle at a speed of 102 m/s. The 80.0 kg pilot does not want the centripetal acceleration to exceed 6.18 times free-fall acceleration. Find the minimum radius of the plane's path. The ...
*Monday, November 19, 2012 at 5:20pm by julie*

**Pyhsics(Stress&Strain)**

1) Calculate the tensile stress in a 33.000mm diameter rod subjected to a pull of 30.000kN. ANS= MPa (Round to 3 decimal places) Diameter = 33.000mm = 0.033m 30.000kN = 30000N Area = pi*d^2/4 = 3.1416 * 0.033^2/ 4 = 3.1416 *0.001089/ 4 = 0.0034212024/ 4 = 8.553006*10^-4 = 0....
*Saturday, June 29, 2013 at 10:23am by Danny*

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