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A 400-turn solenoid is 25-cm long and 3.0-cm in diameter.
(a) What is the inductance of the solenoid?
(b) The solenoid is then connected a circuit as shown in the figure, where e0=24.0V, R1=6.0ohm, R2=4.0ohm, R3=8.0ohm. Find current I1, I2 and I3 immediately after the switch is first closed.
(c) Find I1, I2 and I3 after the switch is closed a long time.
(d) Finally, the switch is turned off, what is the maximum induced emf on the solenoid and the current changing rate dl/dt immediately after the switch is off?
121.7 J of heat energy are transferred to 38.53 g of mercury. By how much does the temperature increase? (in K) How much heat is needed to raise the temperature of 38.53 g of water with the same amount?
A particle of mass m moves on a smooth horizontal table. It is attached to a light, inextensible string that passes through a small hole in the table and carries a mass m, which hangs vertically. Find the Lagrangian of the system as a whole.
a hollow metal sphere has inner and outer radii of 7 cm and 10 cm radii. a point charge is located at the center is
A block of mass m = 2.00 kg is attached to a spring of force constant k = 415 N/m, Find the speed the block has as it passes through equilibrium
Positive electric charge is distributed in the shape of an infinitely long insulating cylinder of radius R and volumetric charge density ?=?0(1-r/R), Find an expression for the linear charge density
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An object is placed 64.5 cm from a screen. Find the magnification of the lens
how far from the woman will he be now. How various revolutions will the car have gone through when the magnitude of its total acceleration is 3.30 m/s^2.
You throw a ball upward with an initial speed of 4.51 m/s. When it returns to your hand 0.92 s later it has the same speed in the downward direction, What was the upward component of the average acceleration
The left end of a long glass rod, 6.00 cm in diameter, has a convex hemispherical surface 3.00 cm in radius. The refractive index of the glass is 1.60. Decide the position s_b of the image of an object placed in air on the axis of the rod infinitely ..
A placekicker must kick a football from a point 36.0 m (about 40 yards) from the goal. By how much does the ball clear or fall short of clearing the crossbar? (Enter a negative answer if it falls short.
Two opposite point charges of magnitude 2.500e-6 C are located near the origin. What is the magnitude of the dipole moment vector for this pair of charges
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