A 20kg ball is rolling at a speed of km/s. how much is the kinetic energy?

How much work is done lifting a 9.10 kg box straight up onto a shelf that is 1.80 m high?

Like a key in a lock, the shape of the. must bind with the. of the recieving neuron

Which of the following are properties of mechanical waves? check all that apply ⭕️ particles of the medium move back and fourth, but do not move with the wave. ⭕️ the particles of the medium always move parallel to the wave motion. ⭕️ wave motion begins with a disturbance in the medium. ⭕️ waves transport energy from a source outward, away from the source.