Use equationi=∫r2dmto calculate the moment of inertia of a uniform, solid disk with mass m and radius r for an axis perpendicular to the plane of the disk and passing through its center. express your answer in terms of the variables m and r.

Red light strikes a metal surface and electrons are ejected. if violet light is now used with a 10% greater intensity, what will happen to the ejection rate (number of ejected electrons per second) and the maximum energy of the electrons? a) greater ejection rate; same maximum energyb) same ejection rate; greater maximum energyc) greater ejection rate; greater maximum energyd) same ejection rate; same maximum energye) none of the above answers are correct

12. a body is a particular amount of matter. it can be a solid, liquid or gas. it can be described as existing in a. size and shape. b. motion and force c. time and space. d. location and movement.

How does the formation of intrusive and extrusive igneous rocks differ?