a uniform meter stick is freely pivoted about the 0.20-m mark. if it is allowed to swing in a vertical plane with a small amplitude and friction, what is the frequency of its oscillations?

If the force on an object is in the negative direction, the work it does on the object must be [2 points a) negative. b) positive c) the work could be either positive or negative, depending on the direction the object moves

Why there is no inductive reactance in dc circuits

Imagine you are standing in the antarctic during the southern hemisphere summer. the sky is clear and blue. there are no clouds in the sky. your shadow is cast on the icy ground. what is the color of the shadow?