Which carries information by copying an original sound? O analog signal
O digital signal
O volume
O frequency

Ahydroelectric plant takes energy from water and turns it into electrical energy. what are the transformations of energy in the water molecules that are used in the process of generating electricity this way?

A2000 kg car is rounding a curve of radius 200 m on a level road. the maximum frictional force the road can exert on the tires of the car is 4000 n. what is the highest speed at which the car can round the curve?

The dot diagram represents the motion of the motorcycle as it moves from left to right