The gorilla, feeling exuberant, throws a 140 g banana straight up in the air from the ground with an initial energy of 20 J. How high up will the banana travel?

What type of electromagnetic wave is used in security pens? a. x-rays c. microwaves b. visible light d. ultraviolet radiation select the best answer from the choices provided

Avery hard rubber ball (m = 0.5 kg) is falling vertically at 4 m/s just before it bounces on the floor. the ball rebounds back at essentially the same speed. if the collision with the floor lasts 0.05 s, what is the average force exerted by the floor on the ball?

How have the competing explanations' experiments on atoms affected the development of the atomic model?