Homework Help: Physical Science

Posted by Tyra J on Wednesday, October 10, 2007 at 12:01am.

If you roll a 5.0 kg bowling ball down the alley at 10.0 m/s, how much work did you do on the ball?

a). 250 J
b). 490 J
c). 2500 J

Physical Science - drwls, Wednesday, October 10, 2007 at 12:26am
Compute the kinetic energy of the ball, (1/2) M V^2. That will be the answer.
Physical Science - bob, Friday, December 14, 2007 at 2:46pm
C
Physical Science - jim, Friday, December 14, 2007 at 2:47pm
b
Physical Science - laura, Wednesday, February 20, 2008 at 8:25pm
25000
Physical Science - ROSemary, Friday, February 20, 2009 at 1:49pm
If you roll a 5.0 kg bowling ball down the alley at 10.0 m/s, how much work did you do on the ball?
Physical Science - ROSemary, Friday, February 20, 2009 at 3:04pm
what is the answer
- Physical Science - ROSemary, Friday, February 20, 2009 at 3:07pm
  you do 600 J of work hoisting a 2 kg bale of hay, to what height did you lift it
  - Physical Science - ROSemary, Friday, February 20, 2009 at 3:07pm
    A 250.0 kg roller coaster car has 20,000.0 J of potential energy at the top of the hill. Neglecting frictional losses, what is the velocity of the car at the bottom of the hill?
    - Physical Science - ROSemary, Friday, February 20, 2009 at 3:08pm
      How long would it take a 20.0 hp motor to lift a 1,000.0 kg crate from the bottom of a freighter's hold to the deck (40.0 m)?
Physical Science - ROSemary, Friday, February 20, 2009 at 3:05pm
. you roll a 5.0 kg bowling ball down the alley at 10.0 m/s, how much work did you do on the ball?
Physical Science - MILTON, Saturday, February 28, 2009 at 12:04am
2500 J
Physical Science - g, Tuesday, September 29, 2009 at 3:02pm
c
Physical Science - Anonymous, Friday, October 1, 2010 at 2:03pm
A 250.0 kg roller coaster car has 20,000.0 J of potential energy at the top of the hill. Neglecting frictional losses, what is the velocity of the car at the bottom of the hill?
Physical Science - Anonymous, Friday, October 1, 2010 at 2:04pm
250
physical science - 1, Saturday, August 11, 2012 at 10:24am
-1'
physical science - 1, Saturday, August 11, 2012 at 10:24am
1
physical science - -1', Saturday, August 11, 2012 at 10:24am
1
-1' - 1, Saturday, August 11, 2012 at 10:24am
1

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