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The radius of the earth is 6.3x10^4m and it completes one revolution in 1 day.
a) what is the centripetal acceleration of an object located on the equator?
b) what is the centripetal acceleration of an object at latitude 40 degrees north?
if an inductor has a change of current 0.418 A to 0.948 and has an inductance of 1.324, what is the change in energy that the inductor is storing
An infinitely long cylinder of radius 6 meters has a uniform charge density of 4 nC/m2. By constructing suitable Gaussian surfaces, find the electric field E both inside and outside the cylinder.
The Mariana trench is located in the Pacific Ocean at a depth of about 11 000 m below the surface of the water. For comparison, determine the weight of a jetliner whose mass is 4.30 × 105 kg
A girl with a mass of 60kg springs from a trampoline with an initial upward velocity of 8.0 m/s. what is the maximum height that the girl (with box) reaches
The primary coil of a transformer has N1 = 4.00 102 turns, and its secondary coil has N2 = 1.20 103 turns. If the input voltage across the primary coil is ?v = (140 V) sin ?t, what rms voltage is developed across the secondary coil? V
A loaded penguin sled weighing 88 N rests on a plane inclined at angle ? = 18° to the horizontal (see the figure). Between the sled and the plane, What is the minimum magnitude of the force
An electrically neutral model airplane is flying in a horizontal circle on a 4.0-m guideline, which is nearly parallel to the ground. Find the magnitude of the charges
The time constant of an RC circuit is 2.6s. How much time (t) is required for the capacitor (uncharged initially) to gain one-half of its full equilibrium charge?
Two spherical balls have volumes in the ratio of 27:1. What is the ratio of their surface areas
a space station in outer space a long way away from the sun has a total surface area of 580m2 with emissivity of 0.62.
The rear window of a van is coated with a layer of ice at0oC. The density of the ice is 917kg/m3. The driver of the van turns on therear-window defroster, which operates at 12V and 23A. Thedefroster directly heats an area of 0.52m2 of therear windo..
when light with a wavelength of 545 shines on a metal surface electrons are ejected with speeds of 3.1 x 105 ms or
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