This energy transformation diagram represents the energy of a boulder, initially positioned on top of a mountain. As it falls, its original gravitational potential energy is converted to kinetic energy and air friction. How much of the energy is kinetic? J

Astone is dropped with no initial velocity from the top of a cliff and hits the ground a time of 3.9 s later. what is the height of the cliff, in units of meters? you may assume that air resistance is negligible. give the answer as a positive number question 15 a figure skater is rotating at a rate of 200 revolutions per minute. what is the angular speed, in units of rad/s? 200 o 20.9 12000 o 3.33

Each neuron shown in this figure innervates a group of muscle fibers. what is the term for a group of muscle fibers innervated by a single neuron?

Is a copper wire a conductor or insulator?