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Find the input force for a hydraulic system which has a .5 inch diameter input cylinder and a 1.75 inch diameter output cylinder where the output force needs to be 2000 pounds.
A 60 kg man is ice-skating due north with a velocity of 6.0 m/s when he collides with a 36 kg child. What is the direction of the child's velocity just before the collision
A large grinding wheel in the shape of a solid cylinder of radius 0.330 m is free to rotate on a frictionless, vertical axle. What is the mass of the wheel
Explain how much work is used to raise A to height h? What happens to the kinetic energy of B if its speed is doubled?
A 21 kg block on a horizontal surface is attached to a horizontal spring of spring constant k = 2.3 kN/m, What is the kinetic energy of the block when it has moved 2.0 cm from its point of release
In an internal combustion engine, air at atmostpheric pressureand a temperature of about 20 degrees celcius is compressed in the cylinder by a piston to 1/9 of its original volume, Estimate the temperature of the compressed air
A proton accelerates from rest in a uniform electric field of 628 N/C. At some later time, its speed is 1.10106 m/s. What is its kinetic energy at the later time
Water has a mass per mole of 18.0 g/mol, and each water molecule (H2O) has 10 electrons. What is the net charge of all these electrons
A curved plate of mass M is placed on the horizontal, frictionless plane as shown. How high the puck will shoot up from the plate
Visible light passes through a diffraction grating that has 900 slits per centimeter, and the interference pattern is observed on a screen that is 2.40 m from the grating, What is the difference between these wavelengths
A 18kg child slides down a 2.5m -high playground slide. She starts from rest, and her speed at the bottom is 1.8m/s. What is the change in the thermal energy of the slide
a simple 1.5 m pendulum oscillates on earth where the acceleration due to gravity is 9.79 m/s^2. How many oscillations will it make in 5 minutes
A 1.5 m cylinder of radius 1.1 cm is made of a complicated mixture materials. Its resistivity depends on the distance x from the left and obeys the formula p(x)=a+bx^2, What is the resistance of the rod
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