Determine the work done by the man on the piano
A 320- piano slides 3.3 down a 24 incline and is kept from accelerating by a man who is pushing back on it parallel to the incline. Determine the work done by the man on the piano.
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An alpha particle (a helium nucleus) is traveling along thepositive x-axis at 1250 m/s when it enters a cylindrical tube of radius 0.500 m centered on the x-axis. Inside the tube is a uniformelectric field of 4.50*10-4 N/C pointing in the negative
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A force F1 of magnitude 4.90 units acts at the origin in a direction 50.0° above the positive x axis. A second force F2 of magnitude 5.00 units acts at the origin in the direction of the positive y axis. Find graphically the magnitude and dire
A 72 {rm kg} person sits on a 4.0 {rm kg} chair. Each leg of the chair makes contact with the floor in a circle that is 1.2 {rm cm} in diameter. Find the pressure exerted on the floor by each leg of the chair, assuming the weight is evenly distri
Would the asteroid belt be dangerous to travel through in a space craft?
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What is the maximum speed with which a 1060 kg car can round a turn of radius 75 m on a flat road if the coefficient of static friction between tires and road is 0.80?
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