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Two railroad cars, each of mass 6500kg and traveling 94 km/h in oppositedirections, collide head-on and come to rest. How much thermal energy is produced in this collision?
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When a person inhales, air moves down the windpipe at 15 cm/s. determine the pressure drop of the constriction
A 0.245 kg ball is thrown straight up from 1.94 m above the ground. Calculate the total work done by the force of gravity during that time
A isolated conducting sphere R=3.0 cm has a charge placed on itssurface. The surface charge density is uniform and has the value-7.2x10^(-6) C/m^2.(1) Find the total charge on the sphere, (2) themagnitude and direction of the electric field at r=R.(3..
A glass soda bottle is emptied of soda and filled to the very top with water. A cork is carefully fitted into the top of the bottle, leaving no air between the cork and the water.
Light from a helium-neon laser (lamda=633nm) is incident on a single slit. What is the largest slit width
Calculate the speed of an 8.5 × 104 kg airliner with a kinetic energy of 1.2 × 109 J
In an aluminum pot, 0.15 kg of water at 100 degrees c boils away in four minutes. find the temperature at the aluminum-steel interface
A 5.20 g bullet moving at 672 m/s strikes a 700g wooden blockat rest on a frictionless surface. what is the speed of the bullet-blocl center of mass
A swimmer looks upward from the bottom of a 3.5-m-deep swimming pool. How far from the swimmer does the board appear to be
A 15.0 kg stone slides down a snow-covered hill (the figure ), leaving point A with a speed of 12.0 m/s. There is no friction on the hill between points A and B, How far will the stone compress the spring
Mason's net income (pre-bonus) is expected to be $3,000,000, and bonus expense is deducted in computing net income. Illustrate what is the amount that needs to be recorded for estimated bonus liability for 2010?
A butterfly fliest from the top of a tree in the center of a garden to rest on top of a red flower at the garden's edge. The tree is 8 m taller than the flower, and the garden is 12 m wide. Determine the magnitudes of the butterfly's displacement?
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