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Discover the height that a billiard ball must be struck so that it will roll with no initial slipping. Suppose that the friction among the ball and table is negligible. Describe your logic clearly.
A basketball player does 2.43 x105 J of work through her time in the game, and evaporates 0.110 kg of water. Assuming a latent heat of 2.26x106 J/kg for the perspiration (the same as for water), decide (a) the change in the player's internal energy a..
A rotating wheel requires 8.00 second to rotate 30.0 revolutions. Its angular velocity at the end of the 8.00 second interval is100.0 rad/s. Evaluate what the constant angular acceleration of wheel
A mass m= 200kg hangs from a horizontal ceiling by two cables, one of length 3.0m and the other 4.0 m ; What is the tension in each cable
Find the magnitude of the electric field
A person on a trampoline bounces straight upward with aninitial speed of 4.5 m/s. What is the persons speed when she returnsto her initial height
A 23.0 g block of copper whose temperature is 447 K is placed in an insulating box with a 92.4 g block of lead whose temperature is 132 K. find the equilibrium temperature of the two-block system
Two men decide to use their cars to pull a truck stuck in mud. What is the net forward force exerted on the truck in the direction it is headed
Two skaters, one with mass 69 kg and the other by mass 39 kg, stand on an ice rink holding a pole of length 12 m and negligible mass. Starting from the ends of the pole, the skaters pull themselves along the pole until they meet. How far does the 39 ..
A puck slides on a surface for 5.6 m before it stops. If it was moving at a velocity of 15 m/s and has a mass of 1.2 kg, what is the force of friction exerted on the puck
A descent vehicle landing on mars has a vertical velocity towardthe surface of mars of 5.5m/s. at the same time it has a horizontalvelocity of 3.5 m/s. At what speed does the vehicle move along itsdescent path? At what angle with the vertical is t..
A system consists of 2.6 mol of an ideal monatomic gas at 375 K. How much heat should be added to the system to quadruple its internal energy at constant pressure? How much heat should be added to the system to quadruple its internal energy at consta..
A placekicker must kick a football from a point 36.0 m (about 40 yards) from the goal. By how much does the ball clear or fall short of clearing the crossbar
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