Student A pushes her 1176N weight force up a 1.5m long stairwell in 2.4 seconds. Student B pushes his 955.5N weight force up the same stairwell
in 1.8 seconds. Which student has the higher power rating?

Steam enters an adiabatic diffuser at 150 kpa and 1208c with a velocity of 550 m/s. determine the minimum velocity that the steam can have at the outlet when the outlet pressure is 300 kpa.

Suppose a wheel with a tire mounted on it is rotating at the constant rate of 2.15 times a second. a tack is stuck in the tire at a distance of 0.373 m from the rotation axis. noting that for every rotation the tack travels one circumference (a) find the tack's tangential speed. (b) what is the tacks radial acceleration?

The least penetrating form of radiation is