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A cylindrical eraser of negligible mass is dragged across a paper at a constant velocity to the right by its pencil. The coefficient of kinetic friction between eraser and paper is 0.650. The pencil pushes down with 3.70 . The height of the eraser is 1.05 and its diameter is 0.730 . Its top surface is displaced horizontally 0.920 relative to the bottom. Determine the shear modulus of the eraser material.
q1. an electric field is set up between two parallel plates each of area 2.2 m2 by putting 1.0 c charge on one plate
A disk with a moment of inertia of 75+1.5 kgm2 rotates at a speed of of 156+5 radians/sec
The motion of a very massive object is hardly affected by what would seem to be a substantial force. Consider a supertanker, with a mass of 2.7×10^8 kg. find what will be the magnitude of its acceleration
Four equal charges of +4.9×10-6 C are placed on the corners of one face of a cube of edge length 7.0 cm. calculate the magnitude of the force on the charge
A diver springs upward from a board that is 5 meters above the the water. determine her peak height measured above the water
A 5-lbm toy car is at the end of a spring compressed 2 inches. The linear spring has a force constant of k = 3 lbf/in. How much energy is stored in the compressed spring
If an enclosed volume of ideal has is heated, raising its temperature from 10 c to 20 c, by what factor does the pressure change
The Paschen series in the hydrogen emission spectrum is formed by electron transitions from ni > 3 to nf = 3. What is the longest wavelength in the Paschen series
You gather up your things and quickly flee the hotel. As you make your way through the crowded streets you are forced to conclude that Miquel is supplying information to your would be killers, what is the horizontal speed of the boat after you jump..
An object 2.01 cm high is placed 40.2 cm to the left of a converging lens having a focal length of 30.5 cm. A diverging lens with a focal length of ?20.0 cm is placed 110 cm to the right of the converging lens.
A flywheel of mass 187 kg has an effective radius of 0.61 m (assume the mass is concentrated along a circumference located at the effective radius of the flywheel). What is the applied torque on the flywheel
A cylinder of mass 14.0 kg rolls without slipping on a horizontal surface. At a certain instant its center of mass has a speed of 7.0 m/s. find the translational kinetic energy of its center of mass
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