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A 55 kg swimmer is standing on a stationary 225 kg floating raft. The swimmer then runs off theraft horizontally with a velocity of +4.7 m/s relative to the shore. Find the recoil velocity that the raft would have if there were no friction and resistance due to the water.
A charged particle moves through a velocity selector at a constant speed in a straight line, Calculate the charge-to-mass ratio of the particle.
A dragster starts from rest and accelerates down a track. Each tire has a radius of 0.320 m and rolls without slipping. At a distance of 401 m, estimate the linear speed of the dragster
The nucleus of a hydrogen atom is a single proton. The radius of a proton is approximately 1 fm (1 multiplied by 10âˆ'15 m). What is the approximate volume of a proton
Transcranial magnetic stimulation (TMS) is a noninvasive technique used to stimulate regions of the human brain. In TMS, a small coil is placed on the scalp and a brief burst of current in the coil produces a rapidly changing magnetic field inside..
A boxcar of mass 5.32 x 10^4 kg is rolling south at 3.49 m/s when it collides and couples with another boxcar that is rolling north at 5.12 m/s. Find the mass of the boxcar
Calculate the magnetic field inside a solenoid and the energy stored within the coil given the following information: I = 6A, Number of turns = 200
Suppose the surfae a circular space station is rotating at35.8m/s. What must be the value of the radius for the astronauts to weigh one half their weight on earth
Sodium ions (Na+) move at 0.844 m/s through a bloodstream in the arm of a person standing near a large magnet. what would be the magnetic force on the arm
a spaceship flies past earth at a speed of 0.900. a crew member on board the spaceship measures its length obtaining the value 400m
Water flowing out of a horizontal pipe emerges through a nozzle. The radius of the pipe is 2.4 cm, and the radius of the nozzle is 0.56 cm. determine the absolute pressure of the water in the pipe
AM radio signals have frequencies between 550 kHz and 1600 kHz (kilohertz) and travel with a speed of 3.0×108m/s. What are the wavelengths of these signals
A steel tank contains 314 g of ammonia gs (NH3 with molar mass 17.0 g/mol) at a pressure of 1.55 x 106 and a temperature of 51.4oC. What is the volume of the tank in liters
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