Of the following types of energies that the Earth receives from the Sun, which type of energy cous
sunburn?
A. light energy
B.
infrared energy
c.
ultraviolet energy
D. microwave energy

Acave rescue team lifts an injured spelunker directly upward and out of a sinkhole by means of a motor-driven cable. the lift is performed in three stages, each requiring a vertical distance of 10.0 m: (a) the initially stationary spelunker is accelerated to a speed of 4.90 m/s; (b) he is then lifted at the constant speed of 4.90 m/s; (c) finally he is decelerated to zero speed. how much work is done on the 68.0 kg rescue by the force lifting him during each stage?

Critical mass is the of material required to produce a chain reaction. a.) minimum amount b.) atomic mass c.) precise amount d.) maximum amount

Suppose you increase your walking speed from 7 m/s to 13 m/s in a period of 2 s. what is your acceleration?