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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.
Calculate the amplitude of the voltage pulse produced by collecting a charge equal to that carried by 10^6 electrons on a capacitance of 100 pF
A copper rod 87cm long is used to poke a fire. The hot end of the rod is maintained at 103%u2218C, What is the temperature of the rod 26cm from the cool end
A bullet of massm = 15 g and velocity 260 m/s is shot into a block of wood that is firmly attached to the ground. What was the acceleration of the bullet
A 200kg projectile is launched with a speed of 50m/s at an angle of 30o from level ground. How much Kinetic Energy will it have when it hits the ground
How far away can a human eye distinguish two car headlights 1.8 m apart? Consider only diffraction effects and assume an eye pupil diameter of 5.5 mm and a wavelength of 550 nm.
A charge of +378 C is fixed at the center of a square that is 0.64 m on a side. How much work is done by the electric force as a charge of +1.8 C is moved from one corner of the square to any other empty corner?
At 20 C, the diameter of the plug is 8.852 cm and that of the inside of the ring is 8.842 cm . They must both be brought to what common temperature in order to fit. What if the plug were iron and the ring brass.
Suppose the emf of a coil rotating in a magnetic field is zero at t = 0 , and increases to its first peak at t = 0.08 ms. What is the period of the output
A charge of 0.43 C is spread uniformly throughout a 36 cm rod of radius 7 mm. What are the volume and linear charge densities
Approximation the force a person should exert on a string attached to a 0.130 kg ball to make the ball revolve in a horizontal circle of radius 0.600 m.
A converging lens of focal length 7.550cm is 20.5cm to the left of a diverging lens of focal length -6.50cm, Find the magnification of the coins final image
A fire hose 10 cm in diameter delivers water at the rate of 16 kg/s. The hose terminates in a nozzle 3.4 cm in diameter. What is the flow speed in the nozzle
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