2. A child throws a 0.200 kg rock at a tree. When the rock leaves the child's hand, it is moving at 20 m/s and is located 1.5 m above the ground. a. Find the total mechanical energy of the rock.
b. How high above the ground does the rock strike the tree if it is moving at 10 m/s at the instant it hits the tree.

An uplifted block of rock between two normal faults

Which best represents the law of conservation of mass ?

When temperature of a substance increases, of its particles increase resulting in more between particles. real world applications of thermal expansion absolute zero (-273 degrees c) is the lowest possible temperature on the kelvin scale. it is a measure of where a substance has no kinetic energy. heat is a process of the . energy flows spontaneously from a object to a until equilibrium is reached. heat is measured in heat is transferred throughis a method of heat transfer that occurs between particles of matter that are in direct contact with each other. are poor conductors that impede / reduce the rate of heat transfer. is a method of heat transfer that occurs in fluids (non-solids) by means of currents. real world application of convectiona method of heat transfer through electromagnetic waves. when energy moves from one object to another inside a closed system, no energy is or in the system in the transaction. systems will spontaneously move to a state of organized energy or high disorder over time called