After coming down a slope, a 60-kg skier is coasting northward on a level, snowy surface at a constant 15 m> s. her 5.0-kg cat, initially running southward at 3.8 m> s, leaps into her arms, and she catches it. (a) determine the amount of kinetic energy converted to internal energy in the earth reference frame. (b) what is the velocity, measured in the earth reference frame, of an inertial reference frame in which the cat’s kinetic energy does not change?

Calculate the heat capacity per object when the total energy is 4 quanta. (think of this in terms of increasing from 3.5 quanta of energy in the system to 4.5 quanta of energy in the system, if that were possible.) c4 = __ j/k/object

Aprojectile is launched from ground level with an initial velocity of v 0 feet per second. neglecting air resistance, its height in feet t seconds after launch is given by s equals negative 16 t squared plus v 0 t. find the time(s) that the projectile will (a) reach a height of 192 ft and (b) return to the ground when v 0equals112 feet per second. (a) find the time(s) that the projectile will reach a height of 192 ft when v 0equals112 feet per second. select the correct choice below and, if necessary, fill in the answer box to complete your choice.

Calculate the work done by an external agent during an isothermal compression of 1.00 mol of oxygen from a volume of 22.4 l at 10∘c and 1.0 atm pressure to 16.8l