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An electric motor rotating a workshop grinding wheel at a rate of 8.90 101 rev/min is switched off. Assume the wheel has a constant negative angular acceleration of magnitude 1.60 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
A charge q is distributed uniformly around a thin ring of radius r, What is the magnitude of the magnetic moment of the rotating charge
Photons with wavelength 670 nm are capable of producing photoelectrons from a particular substance. Determine the substance's work function and cutoff wavelength
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A 1450 N uniform boom is supported by a cable as shown. The boom is pivoted at the bottom, and a 1270 N object hangs from its end. Find the tension in the cable holding up the boom
During a 80-ms interval, a change in the current in a primary coil occurs. This change leads to the appearance of a 6.1-mA current in a nearby secondary coil. The secondary coil is part of a circuit in which the resistance is 12 Î
On planet Tehar, the free-fall acceleration is the identical as that on Earth, but there is also a strong downward electric field that is uniform close to the planet's surface.
A cylindrical container 1.3 tall contains mercury to a certain depth, d. The rest of the cylinder is filled with water. what is the depth d
A wooden raft has a mass of 67 kg. When empty it floats in water (density 1000 kg/m3) with 51 percent of its volume submerged. What mass of sand can be put on the raft without it sinking.
A solid cylinder of mass 2.00kg and radius 1.50x10^-2m is free to rotate on a frictionless axle. determine the acceleration of the falling mass
A 41-kg box is thrown at a speed of 220 m/s & is brought to a halt in a collision that lasts for a time of 6.5 m/s. Find the magnitude of the average net force that acts on the box during the collision.
The lines in a grating are uniformly spaced at 1520nm. Analyse the angular separation of the second order bright fringes between light of wavelength 603nm and 615.4 nm. Reply in units of mrad.
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