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A very long, straight solenoid with a cross-sectional area of 6.00 is wound with 40.0 turns of wire per centimeter, and the windings carry a current of 0.250. A secondary winding of 2.00 turns encircles the solenoid at its center. When the primary circuit is opened, the magnetic field of the solenoid becomes zero in 5.00×10-2 .
What is the average induced emf in the secondary coil?
A 100 meter length of steel changes temperature by 30 C during the course of a day. If the coeffcient of thermal expansion of steel is 12 parts per million per C, what is the change in length of the steel
A typical American house requires an average 20 kW for heating. Explain how many homes could be heated with the waste heat of this one power plant?
A charge of -4.00 nC and a charge of -6.10 nC are separated by the distance of 60 cm. Find out the position at which a third charge of +7.90 nC can be placed so that net electrostatic force on it is zero.
A golfer drives a 0.046kg golf ball from an elevated tee, giving the ball an initial horizontal velocity of 45 m/s. (a) what is the magnitude of the average force exerted by the club on the ball if the contact time for the golf club on the ball du..
In a paramagnet with spin-1 dipoles, each dipole can take on 3 stages: -1, 0 and +1, relative to the direction of the magnetic field, Derive an expression for the partition function for this dipole
In the Bohr model, as it is known today, the electron is imagined to move in a circular orbit about a stationary proton. what would be the corresponding orbital radius
q1. after a tornado a 0.60 straw was found embedded 2.7 into the trunk of a tree. if the average force exerted on the
The pendulum is now swinging on Pluto. Calculate the new period of oscillation in terms of T, knowing that on Pluto the gravity is 1/16 of gravity on the Earth
A 24kg chimpanzee hangs from the end of a horizontal, broken branch of length L0 = 1.4m , What is the shear modulus for this branch
In coming to a stop, a car leaves skid marks 76 m long on the highway. Assuming a deceleration of 6.50 m/s2, estimate the speed of the car just before braking. Express in m/s.
Write a complete set of equations from Kirchhoffs for the circuit -
An ideal fluid flows at 12 m/s in a horizontal pipe. If the pipe narrows to half its original radius, what is the flow speed in the narrower section
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