Question

1. A drill rotates at 380 rad per s. How many radians does it rotate through as it comes to a stop in 30 seconds.

2. An aluminum bar with length 2m and a coefficient of linear expansion of 0.00023 undergoes a temperature change of 180 deg C. What is the change in length?

2. Temperature is related to what form of energy associated with the movement of atoms and molecules?

4. Define latent heat.

5. What is the difference between a transverse wave and a longitudinal wave?

6. What is the centripetal acceleration of a 5kg object rotating around a center point that is 3m away at a rate of 322 rad per s

7. How much torque is exerted on a bolt if a 20cm long wrench is used with a force of 10N?

Answer 1

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