Two cars collide head on while each is traveling at 90 km/hkm/h. Suppose all their kinetic energy is transformed into the thermal energy of the wrecks. What is the temperature increase of each car?

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 11.0 m: (a) the initially stationary spelunker is accelerated to a speed of 4.80 m/s; (b) he is then lifted at the constant speed of 4.80 m/s; (c) finally he is decelerated to zero speed. how much work is done on the 78.0 kg rescue by the force lifting him during each stage

The act of moving from one place to another. a. locomotor b. aerobic c. stationary d. static

Which best represents the law of conservation of mass ?