A particle of mass m moves subject to a central force whose potential is V (r) = Kr3, K > 0. 1. For what kinetic energy and angular momentum will the orbit be a circle of radius a about the origin? 2. What is the period T of this circular motion? 3. If the motion is slightly disturbed from this circular orbit, what will be the period of small radial oscillations about r = a? Express through T. 1 {

answer: the metamorphic rocks are formed when they are exposed to high pressure and high temperatures. this happens when one of the earth's plates comes in contact with the other plate by traveling in opposite directions, straight into each other or slipping under one another. the friction that is caused by this activity results in   melting of rocks and when it cools they are known as metamorphic rocks. this process needs a controlled amount of pressure and temperature otherwise it may turn into magma.

float.

archimedes' principle

denser than water sinks in water.

denser than mercury would sink in it