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Hydraulic stamping machines exert tremendous forces on a sheetof metal to form it into the desired shape. Suppose the input forceis 600N on a piston that has a diameter of .015 m. The output forceis exerted on a piston that has a diameter of .45 m. How large a force does the press exert on the sheet being formed?
The escape speed from a distant planet is 39 km/s. If the acceleration of gravity on the planet is 14.5 m/s^2, what is the radius of the planet
Two point charges are located on the y axis, by these two charges on a third charge q3 = 7.50nC located at y3 = 0.350m ? and what is the direction of the net force
The pilot of the spaceship measures the length of the moving ship as 30 meters. Establish its length as measured by a person on earth.
Joey, whose mass is 37kg , stands at rest at the outer edge of the frictionless 250kg merry-go-round, 1.9m from its center. The merry-go-round is also at rest. What is the final angular speed of the merry-go-round
What weight of water is displaced by a 100-ton floating ship? What is the buoyant force that acts on the ship
A 20000kg rocket has a rocket motor that generates 3.0×10^5 N of thrust. What is the rocket's initial upward acceleration
f the U.S. demand for electricity continues to grow at about 2% per year, how many more MWe would be needed to meet that demand in 10 years, What fraction of our present use of natural gas is this
A man with a mass of 58 kg stands up in a 72-kg canoe of length 4.0 m floating on water. How far does the canoe move
Ultrasound used in a particular medical imager has frequency 4.8 MHz and wavelength 0.31mm . Find (a) the angular frequency, (b) the wave number, and (c) the wave speed.
A magnifying glass of focal length 150. mm is used to examine an old manuscript. What is the maximum magnification given by the lens
An object is placed to the left of a convex lens and on the optical axis. What is the magnification of the image formed by the lens
Solar energy is incident on the pond at an average rate of 400 . If the water absorbs all the solar energy and does not exchange energy with its surroundings, explain how many hours will it take to warm from 15 to 25 ?
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