Magnitude at the support point
A diving board of length 3.00 is supported at a point 1.00 from the end, and a diver weighing 540 stands at the free end. The diving board is of uniform cross section and weighs 265. What is the magnitude at the support point?
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A spy in a speed boat is being chased down a river by government officials in a faster craft. Just as the officials' boat pulls up next to the spy's boat, both reach the edge of a 5.1 m waterfall. If the spy's speed is 19 m/s and the officials' sp
a source produces sound waves of time period .001 second and wave length of 20cm. calculate the time taken by sound waves to travel a distance of 800 metres.
In an American football game, a 89.3 kg fullback running east with a speed of 5.09 m/s is tackled by a 95.8 kg opponent running north with a speed of 3.01 m/s. (a) If the collision is perfectly inelastic, calculate the speed and direction of the pl
A surface is infinitesimally close to and surrounds a dipole. The electric flux through the surface must be zero, since the net charge it surrounds is zero. How is it possible for the dipole to have an electric field and be consistent with Gauss'
A group of swimmers is resting in the sun on an off-shore raft. They estimate that 2.8 m separate a trough and an adjacent crest of surface waves on the lake. They count 13 crests that pass by the raft in 18.5 s. How fast are the waves moving? Ans
A proton moves with a speed of 2.4 106 m/s horizontally, at a right angle to a magnetic field. What magnetic field strength is required to just balance the weight of the proton and keep it moving horizontally?
Bonnie and Clyde are sliding a 287 kg bank safe across the floor to their getaway car. The safe slides with a constant speed if Clyde pushes from behind with 385 N of force while Bonnie pulls forward on a rope with 355 N of force. What is the safe
Current causes the temperature of a real resistor to increase why? What effect does this heating have on the resistance? Explain
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