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A square loop and a rectangular loop are each made from thesame length of wire. Each loop contains a single turn, and carriesthe same amount of current. The loops are placed in the sameuniform magnetic field. The long sides of the rectangle are threetimes as long as its short sides. Determine the ratio of themaximum torque on the square loop to the maximum torque on therectangular loop. (give your answer as a fraction, e.g.,"5/6".)
A mass hangs on the end of a massless rope. The pendulum is held horizontal and released from rest. When the mass reaches the bottom of its path it is moving at a speed v = 2.4 m/s and the tension in the rope is T = 14.9 N. How long is the rope
a projectile of mass 0.831 kg is shot straight up with an initial speed of 28.9 ms. if the projectile rises to a
An X-ray photon with a wavelength of 0.260nm scatters from a free electron at rest. Find the initial momentum of the photon
A 24-kg projectile is fired at an angle of60° above the horizontal with an initial speed of 250 m/s. How much energy was released during the explosion
A 7.75- g bullet from a 9-mm pistol has a velocity of 397.0 m/s. It strikes the 0.785- kg block of a ballistic pendulum and passes completely through the block. If the block rises through a distance h = 10.15 cm
Women often suffer from back pains during pregnancy. Let usinvestigate the cause of these back pains, assuming that thewoman's mass is 60kg before pregnancy.
A runaway, 400-kg wagon enters a cornfield with a velocity of 12 m/s and eventually comes to rest. What work was done on the wagon in kJ
A 6500 kg helicopter accelerates upward at 0.59 m/s2 while lifting a 1210 kg car. What is the lift force exerted by the air on the rotors?
A high-E string on a guitar has a length of 0.635 meters and a mass of 2.51E-4 kg (both of these refer only to the "speaking" section of the string). What is the tension on the string
In November 2004, the United States tested a scramjet that flew at 10.0times the speed of sound for 11.0s , as measured by engineers on earth. How long did the flight last as measured inside the jet
Two parallel slits are illuminated by light composed of two wavelengths. One wavelength is ?A = 560nm. The other wavelength is ?B, What is the unknown wavelength
The Earth orbits the Sun once per year. What is the centripetal force keeping the Earth in orbit
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