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1) A solenoid of radius 2.44 cm has 300 turns and a length of 19.3 cm. Calculate its inductance.
2) Calculate the rate at which current must change through it to produce an emf of 51.4 mV.
A cue ball (mass=0.165 kg) is at rest on africtionless pool table. Find the velocity of the second ball after it is struck
A string with both ends held fixed is vibrating in its third harmonic. The waves have a speed of 186 m/s and a frequency of 225 Hz, Calculate the maximum transverse velocity of the string at this point
two protons are 3.0fm apart. 1fm 1 femtometer 1 x 10-15 m a. what is the magnitude of the electric force on one
A goalkeeper kicks a ball of mass 400 g in the air, which reaches a position of height 15.9 m above the ground corresponding to a horizontal distance 19.7 m from its initial position. What is the total work done on the ball
question a spacecraft moving away from earth emits a 4346 hz signal. a scientist on earth measures the signal to be
The circuit in figure 32-34 consists of switch S, a 20.0MΩ resistor, a 12.0V ideal battery, and an air filled capacitor. The capacitor has parallel circular plates of radius 5.00 cm, separated with 3.00 mm. At time t =0, switch S is closed to begin c..
A 7.6 µC charge and a -4.7 µC charge are inside an uncharged sphere. What is the electric flux through the sphere
Estimate the thickness of lead shielding needed to reduce the exposure rate 2.5 m from a 5.92x10^11 Bq point source of Cs-137 to 1.0 mR/hr.
A UFO lowers a 278kg stairway of length 5.29 m from under its belly until it is fully extended at an angle of 54 degree. What is the tension in the cable
An unknown length of platinum wire 0.730mm in diameter is placed as the unknown resistance in a Wheatstone bridge. How long (in meters) is the platinum wire
A train siren indicating that the stationary train is ready to leave the station has a frequency of 80 Hz. What frequency is perceived by the occupant of a car traveling away from the train at 30 m/s? The speed of sound in air is 343 m/s.
A gun fires a bullet vertically into a 1.40-kg block of wood at rest on a thin horizontal sheet. how high will the block rise into the air
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