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A flat circular coil with 125 turns, a radius of 3.42 x10-2 m, and a resistance of 0.448 Ω is exposed toan external magnetic field that is directed perpendicular to the plane of the coil. The magnitude of the external magnetic field is changing at a rate of ΔB/Δt = 0.552T/s, there by inducing a current in the coil. Find the magnitude ofthe magnetic field at the center of the coil that is produced by the induced current.
Each of three tuning forks, A, B, and C, has a slightly different frequency. What is the smallest possible beat frequency when B and C are sounded together
Two astronauts floating at rest with respect to their ship in space decide to play catch with a3-kg asteroid. What is Joe's speed right after his first catch
A 1350 kg cannon, which fires a 70 kg shell with a speed of 606 m/s relative to the muzzle, At what angle with the ground is the shell projected
A baseball player decides to keep going past second base and try for third base. If the player comes to rest at third base, how much work was done on the player by friction
Suppose the rotational kinetic energy of a solid disc is 1000 J when the disk has an angular velocity of 3 rad/s. What is the disk's moment of inertia
In the javelin throw at a track-and-field event, the javelin is launched at a speed of 28 m/s at anangle of 32° above the horizontal. As the javelin travels upward, its velocity points above the horizontal at an angle that decreases as time passes
A freezer has a coefficient of performance of 2.40. The freezer is to convert 1.98kg of water at 26.0 oC to 1.98kg of ice at -5.00 oC in 1 hour. How much wasted heat is rejected to the room in which the freezer sits
An interferometer is used to measure the length of a bacterium. The wavelength of the light used is 650 nm. How long is the bacterium
The internal energy of a gas is 1000j. The gas is compressed adiabatically and it's volume deceases by 400cm^3. What is internal energy of gas
Assume you knew some unstable particles have a half life of 1.00 seconds when not moving but had a half-life of 5.00 seconds while in a particle accelerator. How fast must the particles have been traveling
he primary coil of a transformer has N1 = 390 turns, and the secondary coil has N2 = 2 260 turns. what rms voltage is developed across the secondary coil
A beam of vertically polarized light encounters two polarizing filters, as shown in the figure(Figure 1) . Calculate the transmitted intensity for each of the cases in the figure, assuming that the incident intensity is 26.5 W/m^2
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