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Question: A wire loop of radius 0.50 m lies so that an external magnetic field of magnitude 0.30 T is perpendicular to the loop. The field reverses its direction, and its magnitude changes to 0.20 T in 2.0 s. Find the magnitude of the average induced emf in the loop during this time.
a) At what angle (in degrees) should this strip be placed to yield an apparent focal spot size 2.5 mm x 1.5 mm. b) Using this size target, what angle is required to obtain a 2.5 mm x 2.5 mm apparent focal spot
An electron moves with a speed of 8.0x10^6 m/s along the +x axis. Calculate the magnitude of the magnectic force on the electron
A model airplane of mass 0.790 kg is flying at constant speed in a horizontal circle at one end of a 26.0 m cord and at a height of 11.0 m. What is the acceleration of the plane
An object of size 3cm is placed 14cm in front of a concave lens of focal length 21 cm. decsribe the image formed by the lens. What happens , if the object is moved further away from the lens
A hollow non-conductiong sphere has a uniform charge density ?. The inner and outer radius of the sphere are r1 and r2m respectively. What is the total charge of this sphere
An aircraft carrier has a speed of 13 m/s relative to the water. What is the frequency of the sound heard by the crew on the ship
35MW of power at 45kV (rms) arrives at a town from a generator via 5.0? transmission lines. Calculate the emf at the generator end of the lines
A block of mass m = 0.80 kg slides along a horizontal table with speed v0 = 5.50 m/s. At x = 0 it hits a spring with spring constant k = 45.00 N/m and it also begins to experience a friction force. The coefficient of friction is given by ? = 0.250. H..
A sphere with radius 0.15m has density p that decreases with distance r from the center of the sphere according to p= 2.75*10^3 kg/m^3 - (9.5*10^3kg/m^4)r
Assume the Earth is in uniform cicular motion about the sun. Explain how to determine the angular velocity of the Earth
Water at ground level is moving at a speed of 1.20 m/sec in a pipe at a pressure of 850 kPa. What is the pressure of the water on the fourth floor
A 73.0 kg base runner begins his slide into second base when he is moving at a speed of 4.4 m/s. How much mechanical energy is lost due to friction acting on the runner
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