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A dolphin swims near the sea surface 350 meter west, then 200 meter northwest, and then dives below the surface and swims an additional distance in an unknown direction. The final position of the dolphin is 80 meter directly below a fishing boat located 400 meter north of the starting point. Obtain the dolphin displacement during the dive.
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measuring the speed of light michelson in 1926 albert michelson measured the speed of light with a technique similar to
Two masses are suspended by a rope that passes over a pulley. Both the pulley and the rope have negligible mass and there is no friction in the pulley. Determine the acceleration of the system
A gamma ray from 198Au incident normally on a thick aluminum slab travels 1.45 centimeter before it undergoes a Compton scattering. Determine the range of angles through which the gamma could scatter
An object moves uniformly around a circular path of radius20.0 cm, making one completerevolution every 2.15 s. What is the translational speed of the object
You need a transformer to reduce a voltage of 150 V in the primary circuit to 25 V in the secondary circuit. What is the effective resistance of the secondary circuit
A uniform 1.3 kg rod that is 0.8 m long is suspended at rest from ceiling by two springs, one at each end of the rod. Both springs hang straight down from the ceiling.
A worker drags a 150lb. crate across the floor by pulling on a rope inclined at 17degrees above the horizontal. What tension in the rope is required to start the block moving
A fuel tank explodes, ripping the container into two pieces of masses 30 kg and 11 kg, What was the energy released by the explosion
A 0.20 kg aluminium plate with an initial temperature of 20 degrees c slides down a 15.00m long surface that is inclined at 30 degrees to the horizontal.
On the salt flats of Bonnevile, Utah (latitude ?41?^o N) the British auto racer John Cobb in 1947 became the first man to travel at a speed of 400 mph on land. If he was headed due north at this speed, find the ratio of the magnitude of the Coriolis ..
A proton has an initial speed of 3.3*10^5, What potential difference is required to reduce the initial speed of the proton by a factor of two
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