Describe how a neutral material becomes attracted to a negatively charged object brought near it

Awheel rotates without friction about a stationary horizontal axis at the center of the wheel. a constant tangential force equal to 82.0 n is applied to the rim of the wheel. the wheel has radius 0.150 m . starting from rest, the wheel has an angular speed of 12.8 rev/s after 3.88 s. what is the moment of inertia of the wheel?

The free body diagram shows a box being pulled to the left up a 25-degree incline. the magnitude of the normal force is

Which best describes the difference between internal and thermal energy?