A circular-shaped object of mass 6 kg has an inner radius of 11 cm and an outer radius of 29 cm. Three forces (acting perpendicular to the axis of rotation) of magnitudes 12 N, 28 N, and 13 N act on the object, as shown. The force of magnitude 28 N acts 26◦ below the horizontal. Find the magnitude of the net torque on the wheel about the axle through the center of the object.
Answerinunitsof N·m.

Atwo-stage air compressor operates at steady state, compression 10m^3/min of air from 100 kpa and 300k to 1200 kpa. an intercooler between the two stages cools the air to 300k at a constant pressure of 350 kpa. the compression processes are isentropic. a) calculate the power required to run the compressor, in kw b) compare the result to the power required for isentropic compression from the same inlet state to the same final pressure.