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Physical Science

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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 -

    Compute the kinetic energy of the ball, (1/2) M V^2. That will be the answer.

  • Physical Science -

    25000

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    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?

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    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)?

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    . 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 -

    2500 J

  • Physical Science -

    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 -

    250

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