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A closely wound solenoid of 800 turns and area of cross section 2.5 × 10-4 m2 carries a current of 3.0 A. Explain the sense in which the solenoid acts like a bar magnet. What is its associated magnetic moment?
The speed of a bobsled is increasing because it has an accelerationof 2.4 m/s2. At a given instant in time, the forcesresisting the motion, including kinetic friction and airresistance, total 450 N. The combined mass of the bobsled and it sriders ..
A uniform magnetic field is aligned with the axis of a solenoid having a radius of 0.25m. What is the induced emf in the coil
A weather balloon filled with helium gas has a volume of 279 m3, What is the new volume of the balloon
Light strikes a cube with index of refraction (2) at an angle of 30 deg. At what angle will the light exit the cube
A rope connects a 25 kg mass sitting on a 30 degree incline with a hanging mass of 90 kg, the rope passes over a 12kg disk-shaped pulley that has a radius of 0.250m. When the system is released, the heavier mass descends, the rope turns over the p..
A solenoid that is 93.2 cm long has a radius of 2.71 cm and a winding of 1150 turns; Calculate the magnitude of the magnetic field inside the solenoid
A 2.00 kg block hangs without vibrating at the end of a spring(k=500 N/m) that is attached to the ceiling of an elevator car. Thecar is rising with an upward acceleration of g/3 when theacceleration suddenly ceases (at t=0).
An 271 N object is moving to right when forces act on it Two forces act in + y direction (up) 32 N and 17 N One force acts in down , -y, direction 20N Two forces act to right , +x, direction 18 N and 26N, Determine the net force on the particle
q1. a lightning bolt transfers 6.0 coulombs of charge from a cloud to the ground in 2.0 10-3 second. what is the
the human eye can readily detect wavelengths from about 400 to 700 . if white light illuminates a diffraction grating
A car is traveling along a straight road at a velocity of +31.0 m/s when its engine cuts out. For the next ten seconds, the car slows down, and its average acceleration is a1.
An astronaut is being tested in a centrifuge. The centrifuge has a radius of 10 m and, in starting, rotates according to ? = 0.30t2, where t is in seconds and ? is in radians. (a) When t = 15.0 s, what is the magnitude of the astronaut's angular v..
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