Because of friction, rotational kinetic energy is not conserved while the disks' surfaces slip over each other. what is the final rotational kinetic energy, kf, of the two spinning disks? express the final kinetic energy in terms of it, ir, and the initial kinetic energy ki of the two-disk system. no angular velocities should appear in your answer.

If a tank filled with water contains a block and the height of the water above point a within the block is 0.8 meter, what is the pressure at point a?

The diagram shows a series of volcanic island and a hot spot determine the direction of movement of the tectonic plate that for the island

An important dimensionless parameter concerned with very high-speed flow is the mach number, defined as v/c, where v is the speed of the object such as an airplane or projectile, and c is the speed of sound in the fluid surrounding the object. for a projectile traveling at 1170 mph through air at 50 ˚f and standard atmospheric pressure, what is the value of the mach number?