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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
A particle of mass m is attracted to a force center with force of magnitude k/r2. Use plane ploar coordinates and find Hamilton's equations of motion.
An ambulance siren is the source of sound emitted with a frequency of 1600 Hz. What is the frequency of the reflected sound wave heard at the ambulance
What is the maximum amount of energy that is stored in a volcano if the chamber is 5.5x10^4 meters wide, 7.2x10^4 meters long, thickness =500meters, located at 1200 meters deep, and the crust has a density of 2600 kg/m^3? show work please
A bar magnet is oriented with its magnetic dipole moment at 57.3° to the direction of a 0.0357-T magnetic field, Find the magnitude of the magnet\'s magnetic dipole moment
Assuming the motor is supplied through an equivalent 208 V source with an impedance of 0.18+j0.15W, determine the voltage at the motor terminals during normal operation (slip of 3%).
question a loundspeaker diaphragm is producing a sound for 2.1 s by moving back and forth in a simple harmonic motion.
You are given a straight piece of conductor that is 4.6 cm long, find the magnitude of induced voltage that will be produced between the ends of this moving conductor
A diver springs upward from a board that is threemeters above water. At an instant he contacts the water his speedis 9.20 m/s and his body makes an angle of 78.0o with respect to the horizontal surface of the water.
a 24 kg block slides with an initial speed of 6 ms up a ramp inclined at an angle of 20o with the horizontal. the
A ceiling fan is turned on and reaches an angular speed of120 rpm in 20 seconds. Through how many revolutions does the fan turn
A tank circuit in a radio transmitter is a series RCL circuit connected to an antenna. find minimum and maximum inductance of the tank circuit
Galaxies form by gravitational collapse of regions that are denser than average. Noting that the present day average mass density of the universe is ρ = 3 × 10-30 g/cm-3, estimate how long it takes for a galaxy to collapse.
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