1. If an object\'s velocity is zero, its postion will change. true /false 2. if

Question

1. If an object's velocity is zero, its postion will change. true /false

2. if an objects acceleration is zero, its velocity will change. true/ false

3. Evaluate (5.0x 10^7) (8.0x 10^-17)be sure to follow guideline  for entering answers in scientific notation.

4. At some point in its orbit our asteroid is moving with  speed of 20 kilometers per second. Determin the kinetic energy of the asteroid assuming ithas a mass of 1000 lg. be sure your answer is in the correctn units energy.

5. if the disance from th esun varied during our asteroid's orbit, would its kinetic energy change? would its potential energy change? would  the todatl energy (sum the kineti potential energy) of the asteroid change?

Explanation / Answer

1.False

2. True

3.4.0*10^-9

4. 0.5 * 1000*(20*10^3)^2 = 2*10^11

5. K.E =No, PE= YEs , Total == Yes

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