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A grinding wheel in the shape of a solid disk is 0.300 m in diameter and has a mass of 2.50 kg . The wheel is rotating at 2200 about an axis through its center. What is its kinetic energy? How far would it have to drop in free fall to acquire the same amount of kinetic energy?
The driver of a car sets the cruise control and ties the steering wheel so that the car travels at a uniform speed of 15m/s in a circle with a diameter of 130m. What arc length does it travel in this time
A jet airplane is in level flight. The mass of the airplane is m = 8870 kg. At what angle is the airplane banked
An object of size 3cm is placed 14cm in front of a concave lens of focal length 21 cm. decsribe the image formed by the lens. What happens , if the object is moved further away from the lens
A proton with an initial speed of 800000 is brought to rest by an electric field. What was the potential difference that stopped the proton
Calculate the edge length of a cube that has the same volume as a sphere of radius 4.0 cm. How much greater is the surface area of the cube than that of the sphere
Two protons, moving in a plane perpendicular to a uniform 510 G magnetic field, How much time elapses before they collide again
A microscope with a magnification of 1000 using a converging lens with a focal distance of 1.5 cm for the objective. The tube length given to you is 30 cm long. What should the focal distance of the eyepiece be if you want the eyes to be relaxed whil..
If a cat repeatedly rubs against your cotton slacks on a dry day, the charge transfer between the cat hair and the cotton can leave you with an excess charge of -2.00 ?C. How many electrons are transferred between you and the cat
two gliders on a level air track approach each other. One glider has a mass m1= 0.6 kg and a velocity v1= +4 m/s. Calculate the velocity of the joined gliders
Suppose you wish to make a solenoid whose self-inductance is 1.5 mH, The inductor is to have a cross-sectional area of 1.7 x 10-3 m2 and a length of 0.046 m
Two point charges of +5.0microcolumb +8microcolumb are placed inside a cube of edge length 0.100m. What is the electric flux due to these charges
Suppose that the helium atom, with a filled 1s electron shell, has the same ground-state radius as the Bohr hydrogen atom, Find the density of the 4He atom
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