An electric car runs off a battery which drives the front wheels. The car’s rear wheels drive a generator which recharges the battery.
A. first kind
B. second kind
A. first kind
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What is the longest-lasting internal heat source responsible for geological activity?
a. accretion b. radioactive decay c. sunlight
What do astronomers mean by a constellation?
A) A constellation is a region in the sky as seen from Earth. B) A constellation is a group of stars related through an ancient story. C) A constellation is any random grouping of stars in the sky. D) A constellation is a group of stars that are all located in about the same place in space.
Consider the interference colors in a film of gasoline on a wet street. The water provides a
A) means of spreading the gasoline into a thin film. B) means of slowing the rapid evaporation of gasoline. C) chemical bond with the gasoline. D) second reflecting surface. E) all of the above
As the intensity of light is increased in a photoelectric effect experiment, the energy of the emitted electrons increases
Indicate whether the statement is true or false