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Question: A loop of wire of radius a = 35 mm has an electrical resistance R = 0.033 Ω . The loop is initially inside a uniform magnetic field of magnitude B0 = 1.3 T parallel to the loop's axis. The magnetic field is then reduced slowly at a constant rate, which induces a current I = 0.20 A in the loop. Find the time Î"t it takes the magnetic field to drop to zero.
A crate of weight Fg is pushed by a force P on a horizontal floor. (a) If the coefficient of static friction is μs and P is directed at an angle below the horizontal, show that the minimum value of P that will move the crate is given with: P=μs F g s..
A spool of wire of mass 6.9 kg and radius 0.28 m is unwound under a constant wire tension 15 N. Assume the spool is a uniform solid cylinder that rolls without slipping. Find the friction force on the bottom of the spool
The magnetic field inside a 4 centimeter diameter superconducting solenoid varies sinusoidal between 8.0 T and 12 T at a frequency of 6 Hertz. Obtain the maximum electric field strength at a point 1.2 cm from the solenoid axis
at time t 0 a projectile is launched from ground level. at t 2.00 s it is displaced d 57 m horizontally and h 54 m
Two stars are 8.0 light years away and can just be resolved by a 20 in telescope equipped with a filter that only allows light of wavelength 500 nm to pass.
I have a configuration of two charges. The first charge with a magnitude of 2C sits at point (0,1m) in a coordinate system. If I place an electron at (2m,0) what is the force that it feels
An electron traveling at 362 m/s enters a 9.5 T magnetic field. The angle between the velocity and the field is 56 degree. Compute the radius of the resulting circular path
A 32-kg block attached to a spring of constant k = 12 kN/m can move without friction in a slot as shown. The block is given an initial 300-mm displacement downward from its equilibrium position and released.
A 5.56 10-5 H solenoid is constructed by wrapping 62 turns of wire around a cylinder with a cross-sectional area of 8.30 10-4 m2 , Determine the change in the length of the solenoid.
An astronaut on the planet Trumpiter tosses a golfball horizontally with a speed of 3.45m/sec. The ball falls through a vertical distance of 0.845m and lands a horizontal distance of 5.21m form the astronaut.
A particle has a de Broglie wavelength of 3.20 × 10-10 m. Then its kinetic energy doubles. What is the particle's new de Broglie wavelength
A bus moving with speed 0.96c is 65 feet long according to its passengers and driver. What is its length from your vantage point on a fixed planet?
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