The expanding gases that leave the muzzle of a rifle also contribute to the recoil. a .30 caliber bullet has mass 7.20×10−3 kg and a speed of 601 m/s relative to the muzzle when fired from a rifle that has mass 3.00 kg. the loosely held rifle recoils at a speed of 1.95 m/s relative to the earth.
find the momentum of the propellant gases in a coordinate system attached to the earth as they leave the muzzle of the rifle.
p =
{\rm kg \cdot m/s}

A30 kg weight lies on top of a massless piston of area a = 0.01 m2 the exterior air is at a (constant) p =1 atm and t = 27 c. the interior gas is 0.4 moles of (ideal) n2 and it has initial temperature 27.00 degrees c. 1. what is the initial pressure in the interior? a. 29.4 kpa b. 130.7 kpa c. 101.3 kpa the next three questions concern what happens when an amount of heat q is slowly added to the interior, raising the piston by 1 mm and raising the interior temperature to 27.40 c

The radius of an atom is closest in size to a

Ryan is examining the energy of the particles in a bar of gold. what is ryan most likely studying?