(a frictionless piston-cylinder device contains 10 kg of water at 20°c at atmospheric pressure. an external force f is then applied on the piston until the pressure inside the cylinder increases to 116 atm. assuming the coefficient of compressibility of water remains unchanged during the compression, estimate the energy needed to compress the water isothermally. take the water in the cylinder as the system.)

true tan speed = ang vel x radius

not moving. pos accel,

the chart show the masses and velocities of two colliding objects that stick together after a collision.

according to the law of conservation of momentum, the momentum of the object after the collision is  

answer

1,500

kg • m/s.

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.