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A runner of mass m = 37 kg and running at 2.8 m/s runs as shown and jumps on the rim of a playground merry-go-round which has a moment of inertia of 383 kg·m2 and a radius of 2 meters. Assuming the merry-go-round is initially at rest, what is its final angular velocity?
A carnot engine operates between a hot reservoir at 310 K and a cold reservoir at 280 K. If it absorbs 500 J of heat at the hot reservoir, how much work (in joules) does it deliver?
The work required to stretch a certain spring from anelongation of 4cm to 5cm is 30.5J. What is the work required to increase the elongation from 5cm to 6cm
A generator consists of 23 loops, each with an area of 0.010m^2 located inside a uniform magnetic field of 2.0T. What is the rms voltage
A 7 kg bowling ball moving at 15 m/s hits a 1 kg pin at rest. The ball leaves at a 10 degree angle at 13 m/s. Calculate the angle and velocity of the pin immediately after the collision
a virtual image is located 53.5cm behind a concave mirror with focal length 20.0cm .a. where is the distance from the
determine the angle below the horizontal that you must aim your spear gun in order to catch dinner. Suppose the spear gun barrel is 1.70 m above the water surface, the fish is 1.40m below surface, and the spear travels in a straight line all the w..
A VW Beetle goes from 0 to 102 mi/h with an acceleration of +4.42 m/s2. A top-fuel dragster can go from 0 to 102 mi/h in 1.40 s. What is the acceleration (in m/s2) of the dragster
a layer of water covers a slab of material X in a beaker. A ray of light traveling upwards follows the path indicated. Find the angle the light makes with the normal in the air
To monitor the breathing of a hospital patient, a thin belt is girded around the patient's chest as in the figure below. The belt is a 160-turn coil. find the magnitude of the average induced emf in the coil during that time
A satellite has a mass of 110 kg and is located at 1.96 106 m above the surface of Earth, What is the magnitude of the gravitational force on the satellite
a series of pulses each of amplitude0.150m are sent down a string that is attached to a post at one end. the pulses are
If the initial temperature of the horseshoe is 600?C, and initial temperature of the water is 40?C, what is the equilibrium temperature of the system? Suppose no heat is exchanged with the surroundings.
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