The most massive cannon ever built was made in Russia in 1868. This cannon had a mass in excess of 1.40 × 105 kg and could fire cannonballs with masses up to 4.80 × 102 kg. If the gunpowder in the cannon burned very quickly (adiabatically), forming compressed gas in the barrel, then the gas would expand and perform work on the cannonball. Suppose the initial speed of one of these cannonballs is 2.00 × 102 m/s.
a. How much work is done by the expanding gas?
b. If the internal energy of the gas is 12.0 MJ when the cannonball leaves the barrel, what is the initial internal energy of the gas immediately after all of the powder burns?

Acurve connects the data points that are plotted. (physical science chapter 11 motion)

How will the system respond to a temperature increase?

Your starship, the aimless wanderer, lands on the mysterious planet mongo. as chief scientist-engineer, you make the following measurements: a 2.50-kg stone thrown upward from the ground at 14.0 m/s returns to the ground in 5.70 s ; the circumference of mongo at the equator is 2.20×10^5 km ; and there is no appreciable atmosphere on mongo. (a) the starship commander, captain confusion, asks for the following information: what is the mass of mongo? (b) if the aimless wanderer goes into a circular orbit 2.20×10^4 km above the surface of mongo, how many hours will it take the ship to complete one orbit? (c) an unmanned spacecraft is in a circular orbit around the moon, observing the lunar surface from an altitude of 44.0 km . to the dismay of scientists on earth, an electrical fault causes an on-board thruster to fire, decreasing the speed of the spacecraft by 23.0 m/s . if nothing is done to correct its orbit, with what speed (in km/h) will the spacecraft crash into the lunar surface?