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A car can decelerate at -4.20 m/s2 without skidding when coming torest on a level road. What would be the magnitude of its deceleration if the road were inclined at 12° uphill? Assume the same static friction coefficient.
Two bicycle tires are set rolling with the same initial speed of 3.40m/s along a long, straight road, What is the coefficient of rolling friction r for the tire under low pressure
the rotational inertia of a collapsing spinning star changes to 13 its initial value. what is the ratio of the new
suppose that the engineer is at x = 0 when, at t = 0, he first spots the locomotive. Sketch x(t) curves for the locomotive and high-speed train for the cases in which a collision is just avoided and is not quite avoided.
A magnetron in a microwave oven emits microwaves with frequency=2450 MHv. What magnetic field strength would be required for electrons to move in circular paths with this frequence?
The sketch at the left shows a square loop of wire. Its resistance is 5 ohm. Its dimensions are shown: a = 4.0 cm, b = 5.0 cm. The nearby wire carries a current of 10.0 A. What is the magnitude of the magnetic flux in the loop of wire?
A bucket of mass 5 kg is suspended over a well shaft by a winch and a rope. What is the angular velocity of the winch just before the bucket hits the water
A tank contains 10.3 g of chlorine gas (Cl2) at a temperature of 79 °C and an absolute pressure of 5.16 105 Pa. How many grams of chlorine gas have leaked out of the tank
A crate of mass 10.6 kg is pulled up a rough incline with an initial speed of 1.52 m/s. What is the change in kinetic energy of the crate
A 2.50kg bucket containing 11.5kg of water is hanging from a vertical ideal spring of force constant 120N/m and oscillating up and down with an amplitude of 3.00 cm.
Two objects of the same mass move along the same line in opposite directions. The first mass is moving with speed. What was the speed of the second mass before the collision
a 250-turn solenoid carries a current of 9.0a. the radius of the solenoid is .075m and its length is .14m. determine
the central order for a diffraction pattern from a rectangular aperture is measured to be 15 mm high and 5 mm wide on a
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