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A disk rotating at 8 rad/s is accelerated at the rate of 1.8 rad/s2 for 7 s.
(a) What is its new angular speed?
(b) Find the angle through which it rotated during the acceleration.
(c ) What is the speed of a point on the rim of the disk before the acceleration?
(d) What is the tangential acceleration of this point? at = 0.216 m/s2
(e) What is the radial acceleration of this point?
A basketball (m = 0.60 kg) is dropped from rest. Just before striking the floor, At what height was the basketball dropped
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A current of 18.0 mA is maintained in a single circular loop of 2.20 m circumference. A magnetic field of 0.690 T is directed parallel to the plane of the loop. Calculate the magnetic moment of the loop.
A dedicated sports car enthusiast polishes the inside and outsidesurfaces of a hubcap that is a section of a sphere. When he looksinto one side of the hubcap, he sees an image of hisface 26.0 cm in back of thehubcap.
1. what is the difference between the electric field electric potential and the force exerted by the electric field?2.
A 7130-kg car is travelling at 32.7 m/s when the driver decides to exit the freeway by going up a ramp. After coasting 369 m along the exit ramp the car\'s speed is 13.5 m/s, and it is h = 11.9 m above the freeway. What is the magnitude of the averag..
Two 2.1-cm-diameter electrodes with a 0.10-mm-thick sheet of Teflon between them are attached to a 9.0 V battery, What is the charge before the Teflon is removed
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An electrical device uses 1600 W of power when the amplitude of the alternating current is 3.5 A. What is the rms voltage across it
Complete the following table by calculating DU, W, and Q (including the algebraic signs) for each of the four steps and for the whole process.
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