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A long straight solenoid with a cross-sectional area of 6.15 cm2 is wound with 46 turns of wire per centimeter, and the windings carry a current of 0.240 Amp. A secondary winding of 2 turns encircles the solenoid at its center. When the primary circuit is opened, the magnetic field of the solenoid becomes zero in 5.25 x 10-2 second. Determine the average induced emf in secondary coil?
Trucks can be run on energy stored in a rotating flywheel, with an electric motor getting the flywheel up to its top speed of 611 rad/s. how many minutes can it operate between chargings
Ground and Cloud The electric potential differencebetween the ground and a cloud in a particular thunderstorm is2.5 multiplied by 109 V. What is the magnitude ofthe change in the electric potential energy (in multiples ofelectron-volts) of an elec..
In a television set the power needed to operate the picture tube comes from the secondary of a transformer. Find the turns ratio Ns/Np of the transformer
the 1994 winter olympics included the aerials competition in skiing. in this event skiers speed down a ramp that slopes
what must be done to increase the velocity of a rocket. Calculate the horizontal force that must be applied to produce an acceleration.
A charge of +45.9 C is at the origin. When charge Q is placed at 2 m along the positive x axis, What is the value of Q
A spherical weather balloon is filled with hydrogen until its radius is3.00m. Its total mass including the instruments it carries is10.0kg. Find the buoyant force acting on the balloon
The Navy operated a "man-rated" centrifuge in Warminster, PA. It was used for testing with the astronauts of the Mercury, What is the period of the gondola at that speed
Consider a double-slit experiment with narrow slits, you use a screen placed far from the slits to detect the interference pattern. We now add a material in front of just one of the slits so that the light ray is shifted 180° out of phase just bef..
If an isolated conducting sphere 8.9 cm in radius has a net charge of 6.8 ?C and if V = 0 at infinity, what is the potential (in V) on the surface of the sphere
A guitar string is under a tension of T = 198N. The string has a mass of m = 99g and length L. What is the length of the string in m
a beam of light emitted in a pool of water from a depth of 60.5 cm. how far away relative to the spot directly above it
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