The distance between two charged objects is doubled. what happens to the electrostatic force between the two? a)it will double. b)it will be unchanged. c)it will be one-half of the original force. d)it will be cut to a fourth of the original force.

Gasoline comes from petroleum, which is made from ancient living things. petroleum, therefore, contains a type of energy. a. heat b. nuclear c. biological d. chemical potential

(a) assume the equation x = at^3 + bt describes the motion of a particular object, with x having the dimension of length and t having the dimension of time. determine the dimensions of the constants a and b. (use the following as necessary: l and t, where l is the unit of length and t is the unit of time.) (b) determine the dimensions of the derivative dx/dt = 3at^2 + b. (use the following as necessary: l and t, where l is the unit of length and t is the unit of time.)

There are 3 ways heat can be transferred: through solids, called , through liquids and gases , called , and through electromagnetic waves, called