3. When 10^14 electrons are removed from a neutral metal sphere, the charge on the sphere becomes
Α. 32 με
Β. 16 με
C. -16 με
D. -32 με

The necleus of an atom is made up of what subatomic particles?

How will the system respond to a temperature increase?

Light traveling in water, nwater = 1.33, strikes a plastic block at an angle of incidence of 51.4°; part of the beam is reflected and part is refracted. if the index of refraction of the plastic is 2.0, what is the angle made by the reflected and refracted beams?