What is the work done by the gas
Nitrogen is expanded isentropically. Its temperature changes from 620 °F to 60 °F. The volume ratio is V2/V1 is 6.22 and the value of R for the nitrogen is 0.0787 Btu/lbm-R. What is the work done by the gas?
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A heat lamp emits infrared radiation whose rms electric field is Erms = 3600 N/C. (a) What is the average intensity of the radiation?
The maximum strength the magnetic field in an electromagnetic wave is 4.8 x 10-6 T. What is the maximum strength of the electric field of the wave?
Five hundred cubic feet per second of water flow in a rectangular open channel 20 ft wide and 8 ft deep. Calculate the depth of the water in the canal.
A rocket is moving through empty space in a straight line with constant speed. It is far from gravitational effect of the earth or any planet or star. Under these conditions, the force that must be applied to the rocket in order to sustain the mot
The volume ratio is V2/V1 is 6.22 and the value of R for the nitrogen is 0.0787 Btu/lbm-R. What is the work done by the gas?
Rita accelerates a 0.40 kg ball from rest to 9.0 m/s during the 0.15 s in which her foot is in contact with the ball. What average force does she apply to the ball during the kick?
What is the total charge of the protons that must be fired at the tumor to deposit the required energy?
what is the tension in the connecting string between the blocks?
A sled weighs 100 N. It is held in place on a frictionless 200 slope by a rope attached to a stake at the top; the rope is parallel to the slope. Find the tension in the rope.
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