A 3.6 g lead bullet moving at 284 m/s strikes a steel plate and stops.
If all its kinetic energy is converted to ther-
mal energy and none leaves the bullet, what is
its temperature change? Assume the specific
heat of lead is 128 J/kg • ° C.
Answer in units of °C.

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?

Need only answer if you think you know it

This is a form of winter precipitation. it is frozen precipitation falling as ice pellets. snowflakes melt into raindrops as they pass through a thin layer of warmer air. the raindrops then refreeze into particles of ice when they fall into a layer of sub-freezing air near the surface of the earth. this precipitation is called a) hail. b) rain. c) sleet. d) snow.