Magnetic field lines area visual representation of the invisible lines of force in a magnetic field. By convention, the lines trace the force from

Which subatomic particle has a negative charge

Suppose a comet has an orbital period of 309.1 years around the sun. what is it’s average distance from the sun?

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.