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A 55 kilogram swimmer is standing on a stationary 240 kilogram floating raft. The swimmer then runs off the raft horizontally with a velocity of +4.2 m/s relative to the shore. Determine the recoil velocity that the raft would have if there were no friction and resistance due to the water.
m/s
Radar is utilized to scan for airplanes near an airport. If an airplane is 13 km from the airport, what is the round-trip travel time for the electromagnetic wave utilizing with the radar system?
When certain light rays pass from a vacuum into a block of an unknown material, What is the speed of light inside the block
A 0.45 kg mass attached to a spring undergoes sinple harmonicmotion with a period of 0.51s. What is the force constant K of the spring?
A uniform disk of mass 4m is rotating an a plane parallel to the ground with angular frequency of 12 rad/sec. What fraction of kinetic energy was lost
discuss the steps required in calculating the collector-emitter voltage in a vdb circuit. why does this circuit have a
While at a country fair, you choose to ride the Ferris wheel. Having eaten too many candy apples and elephant ears, Find what is the magnitude of your acceleration
The sound intensity level of a jet plane going down the runway as observed from a certain location is 105 dB
The distance between the centers of the wheels of a motorcycle is 150 cm. The center of mass of the motorcycle, including the rider, is 85.5 cm above the ground and halfway between the wheels. Assume the mass of each wheel is small compared to the bo..
In a series L-R-C circuit, the components have the following values: L = 18.0 mH, C = 170 nF, and R = 380 ohms. The generator has an rms voltage of 120 V and a frequency of 1.25 kHz. Determine the average power supplied by the generator. P=_____W Det..
A 3.1kg block of wood sits on a table. A 3.0 gbullet, fired horizontally at a speed of 540m/s , find the speed of the block immediately after the bullet exits
The primary coil of an ideal transformer has 710 turns, and the secondary coil has 190 turns. find the output current of the secondary coil
Your personal stereo is in a dead spot caused by direct reception from an FM radio station at 92.5 MHz interfering with the signal reflecting off a wall behind you
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