An alpha particle (a helium nucleus, containing 2 protons and 2 neutrons) starts out with kinetic energy of 9.6 mev (9.6 × 106 ev), and heads in the direction straight toward a gold nucleus (containing 79 protons and 118 neutrons). the particles are initially far apart, and the gold nucleus is initially at rest. answer the following questions about the collision. what is the initial momentum of the alpha particle? (you may assume its speed is small compared to the speed of light).

jupiter is the largest planet in our solar system, having a mass and radius that are respectively, 318 and 11.2 times that of earth. suppose that an object falls from rest near the surface of each planet and that the acceleration due to gravity remains constant during the fall. each object falls the same distance before striking the ground. determine the ratio of the time of fall on jupiter to that on earth.

inverse v=i*r

nice nice

= initial pressure

= final pressure = 2

= initial volume

= final volume = /4

= initial temperature = 20 c = 20 + 273 = 293 k

= final temperature = ?

using the equation