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A circular loop in the plane of the paper lies in a 0.7 T magnetic field pointing into the paper. The resistance of the coil is 3 Ω. If the loop's diameter changes from 25 cm to 9 cm in 0.7 second, find what is the average induced current? In milli-amps?
mA
two particles are fixed to an x axis particle 1 of charge q1 2.10 x 10-8 c at x 20 cm and particle 2 of charge q2
Suppose a cube of aluminum which is 1.00 cm on a side accumulates a net charge of +3.10 pC. (a) What percentage of the electrons originally in the cube was removed.
A water tank springs a leak. Find the speed of water emerging from the hole if the leak is 3.0m below the surface of the water, which is open to the atmosphere
A fish is able to jump vertically out of the water with a speed of 4.76 m/s. What is the speed of the fish
An object with mass 3.5 is attached to a spring with spring stiffness constant 300 and is executing simple harmonic motion. Calculate the maximum velocity attained by the object
A proton is accelerated from rest through 500. V. It enters a magnetic field of 0.300 T oriented perpendicular to its direction of motion. determine the frequency with which it moves around this path
An ideal gas, at initial temperature T1 and initial volume 2.0 m3, is expanded adiabatically to a volume of 4.0 m3 then expanded isothermally to a volume of 10 m3, and then compressed adiabatically back to T1.
an 1800 kg car is moving at 14 m/s slows to 8.0 m/s in 4.4 s. Use the impulse momentum theorem to find the magnitude of the force on the car
A small object is located 31.6{\rm cm} in front of a concave mirror with a radius of curvature of 39.0{\rm cm}. Where will the image be formed
in a series r-l-c circuit the phase angle is 40.0 degrees with the source voltage leading the current. the reactance of
An undersea research chamber is spherical with an external diameter of 3.90m . The mass of the chamber, when occupied, is 30800kg. What is the buoyant force on the chamber
A 5.06 10-5 H solenoid is constructed by wrapping 63 turns of wire around a cylinder with a cross-sectional area of 9.70 10-4 m2 , Determine the change in the length of the solenoid
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