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A stroboscope is a light that flashes on and off at a fix rate. It can be used to illuminate a rotating object, and if the flashing rate is adjusted correctly, the object can be made to appear stationary.
a.) Determine the next shortest time?
b.) Find the shortest time between flashes of light that will make a three-bladed propeller appear stationary when it is rotating with an angular speed of 14.8rev/s?
consider two observers jane and susan both in the vacuum region surrounding a 15 compact spherical object of
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An insulated container of negligible mass holds 0.200 kg of water and 0.05kg of ice in thermal equilibrium at atmospheric pressure. calculated the specific heat capacity c of heat
Two runners approaching each other on a straight track haveconstant speeds of 4.50m/s and 3.50m/s, respectively, whenthey are 100m apart. How long will it take for the runners tomeet, and at what position will they meet if they maintain these speeds?
a uniform magnetic field of 0.15 t is directed along the positive x-axis. a positron moving at 5.0 x 106 ms enters the
A uniform rod is attached to a wall by a hinge at its base. Determine the horizontal and vertical components of the force exerted on the rod by the hinge
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