Block with of mass m is at rest on horizontal frictionless surface at time t=0. a force given by f=bt+c is applied horizontally to the center of gravity of the block. if m=4, b=c and c=0.5, what is the magnitude of block velocity at t=2 s?

An engine undergoes a cycle as shown in the diagram. during a complete cycle the work done by the gas is 28.5×103 j and the energy transferred thermally out is 99.4×103 j. there are 1.5×1024 gas molecules and they have three active degrees of freedom. 6. (6 pts) during which process(es) is energy transferred thermally into the gas? a. 1→2 b. 2→3 c. 4→1 d. 1→2 and 4→1 e. none of the above