3) A gas that has a volume of 28 liters, a temperature of 318K, and an unknown pressure has its volume increased to 34 Liters and its temperature decreased to 308K. If I measure the pressure after the change (P2) to be 2.0 atm what was the original pressure of the gas?

Astone is thrown with a speed v0 and returns to earth, as the drawing shows. ignore friction and air resistance, and consider the initial and final locations of the stone. which one of the following correctly describes the change δpe in the gravitational potential energy and the change δke in the kinetic energy of the stone as it moves from its initial to its final location? options a.δpe = 0 j and δke = 0 j b.δpe is positive and δke is negative c.δpe = 0 j and δke is positive d.δpe is negative and δke is positive e.δpe = 0 j and δke is negative