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When people exercise they shed heat to the environment by sweating and radiating. Suppose neither of these works.Of a 70kg person produced 8X10^5 j/hour, and 80% of this appeared as heat, calculate the rise in body temperature after one hour.
A sample of helium behaves as an ideal gas as it is heated atconstant pressure from 273 K to 343 K. what is the mass of helium present
In an experiment performed at the bottom of a very deep vertical mine shaft, a ball is tossed vertically into the air with a known initial velocity of 10.0 m/s, calculate the depth of the shaft
In an X-ray scattering measurement the first order diffraction peak is observed at ? = 12.3°. At what angle is the second order peak observed
Draw a free-body diagram for the instrument during this time.(Assume that the space ship is accelerating upward. ) Find the force that the wire exerts on the instrument.
Estimate, in vacuum wavelengths, the thickness of a vacuum layer which would permit appreciable tunneling for light incident at 42 degrees and for light incident at 4 degrees.
Calculate the intensity distribution
A shuffleboard disk is accelerated at a constant rate from rest to a speed of 7.3 m/s over a 2.4 m distance by a player using a cue. What total distance does the disk travel
q1. two bodies having masses 30 g and 40 g are attached to the ends of the string of negligible mass and suspended from
As the refrigerant passes through the compressor, heat transfer to the surrounding occurs at a rate of 0.32 kJ/s. Determine at steady state the power input to the compressor, in kW.
A boat is tied to a dock by four ropes. Two ropes, with a tension of 55 N each, are at right angles to the dock. What is the magnitude of the sum of these forces
A rotating wheel requires 6.00 s to rotate 30.0 revolutions. What is the constant angular acceleration (in rad/s) of the wheel
Assume the mass of the beam is negligible when compared with the mass of the floodlight. Find out the force FT provided by the cable. The acceleration of gravity is 9.81 m/s2 .
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