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An electric motor rotating a workshop grinding wheel at a rate of 1.13 102 rev/min is switched off. Assume the wheel has a constant negative angular acceleration of magnitude 2.20 rad/s2.
(a) How long does it take for the grinding wheel to stop?
s
(b) Through how many radians has the wheel turned during the interval found in (a)?
rad
Estimate the distance of GPS satellite from the ground.
A block of mass m = 331 g is dragged with a string across a rough horizontal table. The string tension is T = 3.27 N, What is the power supplied by the force of friction
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explain What is the magnitude of the electric field next to the sheet.
Light from an argon laser strikes a diffraction grating that has 5345 grooves per centimeter. Determine the wavelength of the laser light
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