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A coil of wire that has 5 loops with a circumference of 4cm each and has an area of 1.27cm^2 is placed flat on a page. A magnetic field goes straight into the page.
Why does flipping the coil over generate a current if the field is uniform and constant?
Why is it a momentary clockwise induced current if the magnetic field suddenly turns off while the coil is still in the field?
If an induction current is created in the coil, why is there a force of attraction between the 5 wires that make up the loops?
If the field is uniform in space but is increasing in strength with time, why is the current generated in the coil going counterclockwise and not clockwise?
If the coil is deformed into a square 1cm on a side but kept flat on the page, why does the magnetic flux change but the field stays the same?
A ball of mass m is dropped from a height h above the ground. Calculate the speed of the ball at height y if at the instant of release it already has an initial speed of vo
A 50 g aluminum calorimeter contains wter at a temperature of 26 C. When 75 gof lead at a temperature of 85 C is dropped into the calorimeter, How much water was in the calorimeter can
A boy kicks a ball horizontally near the edge off a boardwalk, with an initial speed of 9.0 m/s. Determine the height of the boardwalk above the water
A 10 cm x 10 cm x 10 cm block of steel (density of steel =7900 kg/m3) is suspended from a spring scale. The scaleis in newtons. What is the scale reading if the block is in air
A 4.0 µF capacitor is connected in series with a 2.0 kohm resistor across a 20-V DC source and an open switch. what is the charge on the capacitor
The mean distance between the Earth and the Sun is 1.50×1011 m. The average intensity of solar radiation incident on the upper atmosphere of the Earth is 1390 W/m2, determine the total power radiated by the Sun
a 55 kg person is at rest at the left end of a floating 180kg log. It starts to run toward the other end with a velocity 2.2m/s relative to the still water. what is the velocity of the log
While standing at a crosswalk, you hear a frequency of540 Hz from an approaching police car. What is the velocity of the police car
A particle is moving in a simple harmonic oscillator potential V(x) = (1/2)kx2, Calculate the allowed wave functions and corresponding energies
three charges on a linear plane a b and c a has a charge of 6 micro c b has a charge of 1.5microc and c has a charge of
An interference filter is constructed from two semi reflecting mirrors (r2 = 0.5) separated by a film of plastic which has an index of refraction of 1.35. Determine the Chromatic resolving power for these first two orders
A 315 kg sailboat has an acceleration of 0.72 m/s2 at an angle of 33° north of east. compute direction of the net force that acts on the sailboat
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