The momentum of light is exactly reversed when reflected straight back from a mirror, assuming negligible recoil of the mirror. thus the change in momentum is twice the photon momentum. suppose light of intensity 1.00 ~\text{kw/m}^21.00 kw/m 2 reflects from a mirror of area 2.00 ~\text{m}^22.00 m 2 . using the most general form of newton’s second law, what is the force on the mirror?

Find the momentum for a 2.6-kg brick parachuting straight downward at a constant speed of 8.4 m/s .

Identify the forces that contribute to the centripetal force on the object in each of the following examples: a. a bicyclist moving around a flat, circular track b. a bicycle moving around a flat, circular track c. a racecar turning a corner on a steeply banked curve

Because air contracts as it cools, the air pressure inside a freezer is typically lower than on the outside. why do ice cubes inside a freezer tend to shrink over time? a. the ice dissolves oxygen from the air, forming a denser crystalline matrix.b. the ice reacts chemically with carbon dioxide in the air, forming gaseous carbon compounds.c. the ice melts, and then the liquid freezes as ice crystals on the bottom of the freezer.d. the ice sublimes, and then the water vapor deposits as ice crystals on the sides of the freezer.