A 0.01-kg bob, attached to a string with length L = 1.2 m, has a total energy of 8 J. The angular speed of the bob, θ', when the kinetic energy equals to the half of the potential energy, (K=U/2), is:

Which of the following is the best name for mgcl2

Abaseball is thrown from the outfield toward the catcher. when the ball reaches its highest point, which statement is true? (a)its velocity is not zero, but its acceleration is zero. (b) its velocity and its acceleration are both zero. (c) its velocity is perpendicular to its acceleration. (d) its acceleration depends on the angle at which the ball was thrown. (e) none of the above statements are true.

Aperson touches a large chunk of ice with their hand and remarks, “this is making me cold.” explain what this person is feeling. is the ice transferring “cold” to the person? is there a heat transfer occurring? explain.