A cat jumps from 2.5-meter-tall bookshelf to a 1.3-meter-tall countertop. If the cat has a mass of 15kg on Earth, what is the change in the potential energy of the cat.

A40.0 l tank of ammonia has a pressure of 12.7 kpa. calculate the. volume of the ammonia if it’s pressure is changed to 8.4 kpa while its temperature remains constant.

The substances that are necessary for producing of certain hormones and that store and transport vitamins

Greg drew a diagram to compare two of the fundamental forces. which labels belong in the areas marked x, y and z? gravitational force electromagnetic force x. attractive y repulsive z: infinite range x: infinite range y attractive z. repulsive x. always attractive y: infinite range z: attractive or repulsive x. attractive or repulsive y infinite range z: always attractive