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A locomotive is pulling three wagons along a level track with a force of 100,000 Newton. The wagon next to the locomotive has a mass of 80,000 kilogram, the next one, 50,000 kilogram, and the last one, 70,000 kilogram. Ignore friction. Find what is the force between the 50,000 kg and 70,000 kg wagons?
A yo-yo has a rotational inertia of 1140 g·cm2 and a mass of 81.3 g. Its axle radius is 3.27 mm, and its string is 106 cm long, What is the magnitude of its linear acceleration, rotational kinetic energy
a woman of mass m stands at the edge of a solid cylindrical platform of mass m and radius r. at t 0 the platform is
John who is ice skating eastward collides with Mary who is ice skating northward. What was John's initial speed
The ground reaction force actin gon the long jumper is 4500N acting forward and upward at an angle of 78 degrees from horizontal. What is the vertical component of the ground reaction force
an electron initially traveling at a speed of 105ms enters a region where there is a uniform magnetic field of 2t
A baseball has a mass of 0.140 kg, and it is pitched towards home plate at a speed of 54.0 m/s. what is the final speed of the ball
A major league pitcher can throw a baseball in excess of 42.9 m/s. If a ball is thrown horizontally at this speed, how much will it drop by time it reaches the catcher who is 18 m away from the point of release.
a geostationary communications satellite orbits the earth directly above the equator at an altitude of 34800.
How long would it be on the incline before it arrives back at bottom.
A uniform upward directed electric field of magnitude 1.4*10^-6 N/C has been setup between tow horizontal plates by charging the lower plate positively abnd the lower plate negatively, what is the vertical deflectio of the mass when it exits the pl..
A 150 g aluminum cup contains 150 g of water and both are at 13 C. If you add 150 g of hot water at 90 C what is the final temperature at thermal equilibrium? How much hot water at 90 C needs to be added to achieve a final temperature of 44 C?
A tennis player receives a shot with the ball (0.0600 kg) traveling horizontally at 52.0 m/s and returns the shot with the ball traveling horizontally at 36.0 m/s in the opposite direction. What work does the racket do on the ball
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