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In a hydraulic lift, an air compressor supplies a pressure of 40 psi to a reservoir. If the piston for the lifting platform has an area of 30 in2, what is the maximum weight in pounds that can be lifted by the compressor supplying 40 psi?
A heat engine does 2700 Joule of work with an efficiency of 0.22. Obtain the heat taken in from the hot reservoir
a u.s. 20 gold piece has a mass of 33.44 grams and displaces 1.935 cm3 of water. if the coin is known to consist of
A block of ice rests across the whole of a rectangular table. A wire on which we attach a 10 kg weight surrounds the ice. Explain why the wire will go through the ice block without the ice breaking into two pieces.
one billiard ball is shot east at 2.15 ms. a second identical billiard ball is shot west at 1.42 ms. the balls have a
Two parallel square metal plates (side length: 13 cm) are separated by a dielectric material with a dielectric constant 3.9 and a thickness of 2.4 mm. Find the capacitance of the parallel-plate capacitor
Calculate the force required to pull a copper ball of radius 2.50 cm upward through a fluid at the constant speed 9.00 cm/s. Take the drag force to be proportional to the speed; with proportionality constant 0.950 kg/s. ignore the buoyant force.
q1. megans mass is 27 kg. she climbs the 4.8 m ladder of a slide and reaches a velocity of 3.6 ms at the bottom of the
A 2.06 Newton force is applied to the plunger of a hypodermic needle. If the diameter of the plunger is 1.10 centimeter and that of the needle 0.210 mm, Find with what force does the fluid leave the needle
In the hydrogen atom the radius of orbit B is 16 times greater than the radius of orbit A. What is the total energy of the electron in orbit B
The line connecting the midpoints of the two rods?
Water moves through a constricted pipe in steady, ideal flow. At the lower point the pressure is 1.70 105 Pa and the pipe radius is 3.00 cm. Find the volume flow rate through the pipe
A small office building air conditioner operates on 250 V AC and consumes 3.88 kW, What is its effective resistance and How is energy related to power? Check units for consistency
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