a bowling ball hits two standing bowling pins at the same time. which of the following is true. assume that all collisions are elastic

If a simple machine reduces the strength of a force, what must be increased?

6–48 bananas are to be cooled from 24 to 138c at a rate of 215 kg/h by a refrigeration system. the power input to the refrigerator is 1.4 kw. determine the rate of cooling, in kj/ min, and the cop of the refrigerator. the specific heat of banana above freezing is 3.35 kj/kg·8c.

The voltage applied across a given parallel-plate capacitor is doubled. how is the energy stored in the capacitor affected?