Acylinder of gas is compressed by a piston from an initial volume of 125 liters to a final volume of 90 liters. the compression occurs at constant pressure, and the work done on the gas by the piston is 104 joules. what is the gas pressure during the compression? (1 liter = 10-3 meters3)a. 4 × 102 pascalsb. 3 × 105 pascalsc. 1 × 105 pascalsd. 3 × 104 pascalse. 3 × 10-1 pascals

Asolid cylinder and a cylindrical shell have the same mass, same radius, and turn on frictionless, horizontal axles. the cylindrical shell has light-weight spokes connecting the shell to the axle. a rope is wrapped around each cylinder and tied to blocks of equal masses that are held the same height above the ground. both blocks are released simultaneously. the ropes do not slip. which block hits the ground first? or is it a tie?