A physics textbook has a mass of 2.2 kg a. What is the weight?

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?

True or false: the revolution of the earth creates day and night as it rotates around the sun

If steel is more dense that lake water, why can a boat float