The strength of a magnetic field created by current in a wire can be increased by: A. Decreasing the current in the wire.
B. Using longer wire.
C. Using shorter wire.
D. Wrapping the wire into a coil.

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.

What does the law of conservation of mass state?

At the negative terminal of the battery the electron has electric potential energy. what happens to this energy as the electron jumps from the negative to the positive terminal?