Consider twins, alice and bob. alice goes off in a straight line traveling at a speed of 0.96c for 7 years as measured on her clock, then reverses and returns at half the speed. bob remains at home. make a spacetime diagram showing the motion of alice and bob from bob’s point of view. when alice arrives home, what is the difference in ages between alice and bob?

Agas contained within a piston-cylinder assembly undergoes three processes in series: process 12: compression with pv= constant from 1 bar and 1 liter to 4 bar. process 23: constant pressure expansion to 1 liter. process 31: constant volume calculate the pressure and volume at each state, and sketch the processes on a p-vdiagram labeled with pressure and volume values at each numbered stat

Most short-period comets do not have randomly oriented orbits because

The radius of a sphere is increasing at a rate of 9 cm/ sec. find the radius of the sphere when the volume and the radius of the sphere are increasing at the same numerical rate.