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Q1. In a car lift, the output plunger has a radius of 9cm. the weight of the plunger and the car is 21600N. What is the gauge pressure of the hydraulic oil used in the operating lift?
Q2. Calculate the magnitude of the gravitational force exerted by Venus on a 90 kg human standing on the surface of Venus.
Q3. A uniform spherical shell of mass 8.60 kg with diameter 54.0 cm has four small masses of mass 2.20 kg attached to its outer surface and equally spaced around it. This combination is spinning about an axis running throughout the center of the sphere and two of small masses.
What friction torque is essential to decrease its angular speed from 70.0 rpm to 60.0 rpm in a time interval of 27.0 s?
A transformer with a turns ratio (secondary/primary) of 1:11 is used to step down the voltage, determine the voltage supplied to the recharger
A light bulb is placed 22.3 cm in front of a concave mirror. Calculate the focal length of the concave mirror
The flux through a hollow uncharged box is 69 Nm2/C. The box is a cube with length 20 cm. How much charge is inside the box
A 4.0 kg block is released from rest at the top of a 30 degree frictionless incline. The block makes a head on elastic collision with another 3.0 kg block initially at rest on a horizontal surface at the bottom of the incline.
When at rest, two trains have sirens that emit a frequency of 300 Hz. The trains travel toward one another and toward an observer stationed between them. What is the speed of the second train
a rifle with a mass of 2.8 kg fired a bullet with a mass of 0.003 kg. the bullet moves with a muzzle velocity of 420 m/s after the rifle is fired
A copper wire is 2 meters long. when a certain load is hung from the wire, making sure the wire is straight, how much does each inter-atomic bond stretch
A 10 g bullet traveling at 360m/s strikes a 8.0kg , 0.90-m-wide door at the edge opposite the hinge. What is the angular velocity of the door just after impact
A hollow, spherical shell with mass 2.40 kg rolls without slipping down a slope angled at 39.0 degrees. Find the friction force
A charge of +45.9 C is at the origin. When charge Q is placed at 2 m along the positive x axis, What is the value of Q
A dockworker applies a constant horizontal force of 88.0N to a block of ice on a smooth horizontal floor. The frictional force is negligible. What is the mass of the block of ice
An ideal gas has a pressure of 2.0 atm and temperature 27 degrees celcius. what is the volume of this gas
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