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At the local swimming hole, a favorite trick is to run horizontally off a cliff that is 8.9 meter above the water. One diver runs off the edge of the cliff, tucks into a "ball," and rotates on the way down with an average angular speed of1.4 rev/s. Neglect air resistance. Calculate the number of revolutions she makes while on the way down. rev
Two cylindrical bars, each with diameter of 2.00 cm, are welded together end to end. One of the original bars is copper and is 0.380 m long. The other bar is iron and is 0.190 m long. What is the resistance between the ends of the welded bar at 20°C?
A 1200 car is moving on the freeway at 60.0 . What is the magnitude of its momentum in SI units? What is the magnitude of its kinetic energy in SI units. how much kinetic energy does it have
When attaching a mass of 50g on a force table at 90 degrees and an unknown mass at 0 degrees, you get an equilibrant mass to have 230 g positioned at 225 degrees
Young David who slew Goliath experimented with slings before tackling the giant. He found that he could revolve a sling of length 0.650 m at the rate of 9.00 rev/s. What is the speed of the stone for each rate of rotation
Two sound sources radiating in phase at a frequency of 485 Hz interfere such that maxima are heard at angles of 0 and 22° from a line perpendicular to that joining the two sources. Find out the separation between the two sources.
The electric output of a power plant is 700MW. Cooling water flows during the power plant at the rate 0.500 x 10^8L/hr. The cooling water enters the plant at 12.0ºC and exits at 27.0ºC. What is the power plant's thermal efficiency?
A large air conditioner has a resistance of 7.0?and an inductive reactance of 17?. Find the impedance of the air conditioner
question 1 in cylindrical coordinates ds2 drho2 p2dphi2 dz2. find the non-zero christoffel symbols and the equations
A uniform rod of length L and mass M is nailed to a post so that two thirds of its length is below the nail. What is the period of small oscillations of the rod
A bullet of mass mb is fired horizontally with speed v1 at a wooden block of mass mw resting on a frictionless table. The bullet hits the block and becomes completely embedded within it. After the bullet has come to rest within the block, the bloc..
A 2.90 box is moving to the right with speed 8.50 on a horizontal, frictionless surface, What distance does the box move from its position at before its speed is reduced to zero
As a bat flies toward a wall at a speed of5.70m/s , What frequency does the bat hear in the reflected wave
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