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In a machine shop,a hydraulic lift is used to raise heavy equipment forrepairs. The system has a small piston with a cross-sectionalarea of 0.042m2and a large piston with a cross-sectional areaof 0.191 m2. An engine weighing 3400 N rests on the largepiston. What force must be applied to the small piston inorder to lift the engine in units of N?
If the engine rises0.184 m, how far does the smaller piston move in units of m?
A student (m = 63kg) falls freely from rest and strikes the ground. During the collision with the ground, he comes to rest in a time of 0.040 s. From what height did the student fall
Near the surface of the Earth, an ideal spring with spring constant k = 50 N/m is on a frictionless horizontal surface at the base of a frictionless inclined plane, what is the angle µ of the inclined plane relative to the horizontal
A 54.6 g sample of a conducting material is all that is available. The resistivity of the material is measured to be 1.18×10-7 ?m and the density is 7.82 g/cm3. What length is required
Light enters a polarizing apparatus at an intensity of 100 units, Determine the angle of rotation theta
After the Sun exhausts its nuclear fuel, its ultimate fate will be to collapse to a white dwarf state. Calculate the average density of the white dwarf
Your forehead can withstand a force of about 6.0kN before fracturing while your cheekbone can only withstand about 1.3 kN. what is the magnitude of the balls deceleration
A converging lens produces a real image magnified 3 times that of an object. If the object is placed at 15 cm from the lens, calculate the focal length of the converging lens
A 0.300-m-long cylindrical capacitor consists of a solid conducting core with a radius of 1.00mm, Calculate the total charge of the capacitor
An elevator cable winds on a drum of radius 80.0 cm that is connected to a motor. If the elevator moves down8.0m, how many revolutions has the drum made
When a charge with q=2e moves under the influence of the electric force and an external force through a potential difference of -80V, The work done by the external force is
A cannon is aimed at an angle of 30 degrees above the horizontal. It fires a cannonball into the direction of a valley with a muzzle velocity of 100m/s. What is the maximum height of the ball
The two metal objects in the figure have net charges of +68 pC and -68 pC, which result in a 28 V potential difference between them, What is the capacitance in picofarads of the system
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