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1.A 1100-turn coil of wire that is 2.0cm in diameter is in a magnetic field that drops from 0.13T to 0 T in 10ms . The axis of the coil is parallel to the field.
What is the emf of the coil?
__________V
2. What is the magnetic field amplitude of an electromagnetic wave whose electric field amplitude is 15V/m ?
_________________T
3. A 1300-turn coil of wire that is 2.3cm in diameter is in a magnetic field that drops from 0.13T to 0 T in 9.0ms . The axis of the coil is parallel to the field.
_________________V
You are standing 4.5m from a convex security mirror in a store. You estimate the height of your image to be half of your actual height. Estimate the radius of curvature of the mirror
A laser with wavelength 650 nm is incident on a single slit with width 10 mm. A screen is placed 1 m beyond the slit. How far apart will the first dark bands on either side of the central maximum be?
For the following questions, express your answers in terms of q. (a) How much charge ends up on sphere C? (b) What is the total charge on the three spheres before they are allowed to touch each other? (c) What is the total charge on the three sphe..
A student removes a 10.50 kg stereo from a shelf that is 1.802 m high. The amplifier is lowered at a constant speed to a height of 0.75 m. What is the work done by a) person and b) gravitational force that acts on the amplifier.
A certain defibrillator sends 0.12 C of charge through the heart. How much energy is released when it discharges
An airtight box has a removable lid of area 2.0 10-2m2 and negligible weight. The box is taken up a mountain where the air pressure outside the box is 0.75 x10^5Pa. The inside of the box is completely evacuated. What is the magnitude of force nece..
An Escort and a Camaro traveling at right angles collide and stick together. The Escort has a mass of 1300 kg, What was the speed of the Camaro
A 30.0 cm long string is fixed at both ends. If standing waves are formed, what is the wavelength of the fundamental mode
A stone of weight W has specific gravity 1.68. When the stone is suspended from a scale and submerged in water, what is the scale reading in terms of its weight in air
At what net rate does heat radiate from a 275m^2 black roof on a night when the roof temp is 30.0C and the surrounding temp is 15C. The emissivity of the roof is 0.900
Although both stars probably formed from the same clump of gas, more massive one must have had its birth slowed so that it became a key -sequence star millions of years later than its less massive companion.
During a long airport layover, a physicist father and his 8-year-old daughter try a game that involves a moving walkway. With what speed was the girl walking
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