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It has been suggested that rotating cylinders about 9 meter long and 5.4 meter in diameter be located in space and used as colonies. Obtain what angular speed must such a cylinder have so that the centripetal acceleration at its surface equals the free-fall acceleration on Earth?
rad/s
A birds travels at 1.4 m/s with a fish in its claws, at 15 degrees below the horizontal. If it drops the fish that takes 1.8 seconds to land on the ground
computer chips are etched on circular cylinder wafers of thickness 0.60mm that are sliced from a solid cylindrical silicon crystal of length 30cm . If each wafer can hold 100 chips, what is the maximum number of chips that can be produced from one..
A skier starts from rest at the top of a hill. The skier coasts down the hill and up a second hill, as the drawing illustrates. What must be the height h of the first hill
a copper rod had an initial diameter of 4.0 mm and an initial cross-sectional area of (pi)d^2/4=12.6 mm^2. What was the rod's final cross-sectional area
in conventional television signals are broadcast from towers to home receivers. even when a receiver is not in direct
A pilot, whose mass is 72.0 kg, makes a loop-the-loop in a fast jet. Assume that the jet maintains a constant speed of 185 m/s and that the radius of the loop-the-loop is 1.570 km, What is the pilot's apparent weight at the top of the loop-the-loop
a particle of mass m is confined to move without friction in a vertical plane with axes x horizontal and y vertically
the electric field from a radio station some distance from the transmitter is given by 10-4nc cos 106t wheretis in
Estimate the maximum centrifugal and coriolis forces that you would experience on a ferris wheel in Melbourne, FL. How does this compare with gravity? (Please use the earth's surface as the reference frame).
A spherical balloon is made from a material whose mass is 2.57 kg. The thickness of the material is negligible compared to the 1.22-m radius of the balloon. Find the absolute pressure of the helium gas
a cylinder piece of metal .085m tall with a diameter of 3.90 cm has a specific gravity equal to 5.0. What is the mass of the cylinder in units of grams
Compute the kinetic and potential energies of an airplane weighing 5.00 tons flying at a height of 30.0 × 103 ft at 500. mph. Give answer in both SI and Engineering English units. Assume standard gravity.
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