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A capacitor is connected across an ac generator whose frequency is755 Hz and whose peak output voltage is140 V. The rms current in the circuit is 3.0 A.
a) What is the capacitance of the capacitor?b) What is the magnitude of the maximum charge on one plate of the capacitor?
The two most prominent wavelengths in the light emitted by a hydrogen discharge lamp are 656 nm (red) and 486 nm (blue). Light from a hydrogen lamp illuminates a diffraction grating with 460 lines/mm , and the light is observed on a screen 1.7 m b..
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A circular curve of highway is designed for traffic moving at 55 km/h. If the radius of the curve is 120 m, what is the correct angle of banking of the road
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A constant friction force of 5 N acts on a 85 kg skier for 20 s. What is the skier's change in velocity
in bohr model of hydrogen atom the average kinetic energy of the electron in the first excited state is four times the
A 386 g object is attached to a spring andexecutes simple harmonic motion with a period of 0.240 s. If the total energy of the system is5.48 J. Find the maximum speed of the object
A sports car, picking up speed, passes between two markers ina time of 4.1 seconds. the markers are separated by 120 meters. what is its speed at the second marker
a batter hits a pitched ball when the center of the ball is 1.33 m above the ground.the ball leaves the bat at an angle
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