A rocket-powered sled has a mass of 240 kg. The rocket motor has a thrust of
6,000 N. The coefficient of kinetic friction
with the snow is 0.150. What is the net
acceleration of the sled?
a = [?] m/s2

Suppose an objects initial velocity is 10m/s and it’s final velocity is 4 m/s. mass is constant. what can best be concluded about the object based in the work-energy theorem

Oxygen undergoes an isentropic expansion from 120 degree c and 280 kpa absolute to 140 kpa absolute. determine the final temperature of the oxygen and the amount of work per kg of o_2 produced in the process if it is adiabatic.

If a substance is in the gas phase, which of qualities of the gas will stay constant? a: volume b: mass c: shape d: position of particles