Why might the amount of current and voltage in a circuit need to be juggled?

Ascrew incorporates which other simple machine? lever wheel and axle inclined plane pulley

Abicycle slows down when the rider applies the brakes. what type of energy transformation is involved in this example? a. kinetic energy into heat energy b. heat energy into potential energy c. potential energy into kinetic energy d. kinetic energy into mechanical energy

If angle "a" is 25°, angle "b" is: a) equal to angle c b) less than angle c c) greater than angle c