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A coin slides over a frictionless plane and across an xy coordinate system from the origin to a point with xy coordinates (3.0 m, 4.0 m) while a constant force acts on it. The force has magnitude 2.0 N and is directed at a counterclockwise angle of 100" from the positive direction of the x axis. How much work is done by the force on the coin during the displacement?
A 17.0 kg monkey hangs from a cord suspended from the ceilingof an elevator. What was the elevator's minimum acceleration
An artillery shell is launched on a flat, horizontal field at an angle of ? = 37.8° with respect to the horizontal and with an initial speed of v0 = 277 m/s. What is the horizontal distance covered by the shell after 9.26 s of flight? What is the ..
A cafeteria tray dispenser supports a stack of trays on a shelf hangs from four identical spiral springs under tension, one near each corner of the shelf. Each tray is rectangular, 45.3 cm by 35.6cm, 0.450 cm thick, and with mass 580g. Demonstrate..
A charge, Q2 = -7.00x10-6 C, is 11.00 cm to the right of charge Q1 = 6.00x10-6 C. Where can a third charge are placed, along the line connecting Q1 and Q2, such that it experiences no net force (other than ±?)?
"Egypt in Turmoil" Please respond to the following: Explain the causes of the turmoil in Egypt in early 2011. Elaborate on at least two perspectives on the situation. Appraise the prospects for the Muslim brotherhood in Egypt now that that count..
question a seconds pendulum is one that moves through its equilibrium position once each second. the period of the
Two cars have a head on collision. Both were traveling at 42m/s toward each other. Car A has a mass of 722 KG. Car B has a mass of 848KG. After impact, car A is moving backward at 2 m/s. What is car B's velocity after impact.
Two identical guitar strings are prepared such that they have the same length (1.91 m) and are under the same amount of tension, What is the wave propagation speed on the guitar strings
Write any two properties of electric field lines. A neutral conducting sphere contains a spherical cavity. A point charge +q is located at the center of the cavity. What is the total charge on the exterior surface of the conductor? What is the total ..
An iron tower in is 304 meters tall on a cold day (T = -9 degrees Celsius). What is its height of the tower on a hot day when the temperature is 34.6degrees Celsius
A horizontal rifle is fired at a bull's-eye. The muzzle speed of the bullet is 664 m/s. The gun is pointed directly at the center of the bull's-eye, however the bullet strikes the target0.023 m below the center. What is the horizontal distance among ..
A moth at about eye level is 11 cm in front of a plane mirror; you are behind the moth, 25 cm from the mirror. What is the distance between your eyes
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