The power in an electric circuit varies inversely with the resistance. If the power is 2,200 watts when the resistance is 25 ohms, find the resistance when the power is 1,100 watts.

Acube has a volume of 2011 cubic inches. what is the angle measure between a side of a cube and its interior diagonal?

The earth remains in orbit around the sun due to the force of gravity. how does the force of gravity exerted by the sun on the earth compare to the force of gravity exerted by the earth on the sun?

Air initially at 0.75 bar, 1000 k, and occupying a volume of 0.12 m^3 undergoes two processes. process 1-2: the air is compressed isothermally until the volume is halved. process 2-3: the air undergoes a constant pressure process until the volume is halved again. assume ideal gas behavior. a) determine the mass of the air, in kg. b) the work and the heat transfer for each of the two processes, in kj. (100 kj = 1 bar . m^3)