Charges q1 and q2 exert repulsive forces of 10 n on each other. what is the repulsive force when their separation is decreased so that their final separation is 80% of their initial separation?

The coefficient of friction is a number that represents the resistance to sliding between two in contact with one another.

Aturntable a is built into a stage for use in a theatrical production. it is observed during a rehearsal that a trunk b starts to slide on the turntable 10 s after the turntable begins to rotate. knowing that the trunk undergoes a constant tangential acceleration of 0.31 m/s2, determine the coefficient of static friction between the trunk and the turntable.

In a set amount of time, a battery supplies 25j of energy to an electric circuit that includes two different loads. one of the loads produces 10 j of heat energy during this time interval. how much heat energy is produced by the second load in this time? explain your answer