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A particle with a charge of +8.7 ?C and a speed of 45 m/s enters a uniform magnetic field whose magnitude is 0.35 T. For each of the cases in the drawing, find the magnitude of the magnetic force on the particle.
A mine car (mass=490 kg) rolls at a speed of 0.50 m/s on a horizontal track, as the drawing shows. Determine the speed of the car-coal system
A Carnot-efficiency engine operating between a reservoir of liquid mercury at its melting point and a colder reservoir extracts 15.0 J of heat from the mercury and does 4.0 J of work during each cycle. What is the temperature of the colder reservo..
A lens that has a focal length of 8.45 cm is used as a magnifying glass. (Take the near point of a normal eye to be 25 cm from the eye.) What is the angular magnification
John measured the thickness of a book using a ruler. Calculate the mean thickness of the book.
The liquid-drop model of the atomic nucleus suggests high-energy oscillations of certain nuclei can split the nucleus into two unequal fragments plus a few neutrons, Calculate the electric potential energy (in electron volts) of two spherical fragm..
water in a rotating container of radius 50 mm is 30 mm lower in the center than it is on the edge. Find the angular velocity of the container
Throughout a race, runner runs 10.0 meters north, turns 45 degrees north of east, and runs 5 meters. Then, after a while, the runner turns due east and runs for 15 meters to finish the race. What is the magnitude and direction of the runner's tota..
make a hypothesis about initial and final momentums before playing with the sim.make a data table for the following
A displacement vector r in the xy plane is 37 m long and directed at angle ? = 34° as shown below. Determine the x and y components of the vector
A motorist drives along a straight road at a constant speed of 22.0 m/s. Just as she passes a parked motorcycle police officer, Find the speed of the officer as he overtakes the motorist
Two point charges 1.9cm apart have an electric potential energy -150?J . The total charge is 30nC
A scaffold that weighs 275N supports two painters, one weighing 150N and the other weighing 325N, What should the reading on the right scale be
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