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The potential difference between the accelerating plates of a TV set is about 25 kV. If the distance between the plates is 1.5 cm, find the magnitude of the uniform electric field in the region between the plates.
What is the moment of intertia of the pendulum about the pivot point?
If the ball is in contact with the wall for 0.200 s, what is the average force exerted by the wall on the ball? (Suppose right is the positive direction.)
Two steel juggling balls each carry a charge of2.75 μC. There is a repulsive force between themof 1.85 N. What is the distance between the centers of the two balls?
A 1.0-C charge is 15 m from a second charge, and the force betweenthem is 1.0 N. What is the magnitude of the second charge?
At a recent rock concert, a dB meter registered 130 dB when placed 1.50 m in front of a loudspeaker on the stage. What was the power output of the speaker
Two loudspeakers in a plane, 5 m apart, are playing the same frequency. If you stand 14 m in front of the plane of the speakers, What is the frequency of the sound
A parallel-plate capacitor is formed of two 10 cm x10 cm plates spaced 1.0 cm apart, What is the slowest speed the electron can have if it is to reach the negative plate
A spherical balloon is made from a material whose mass is 3.00 kg. The thickness of the material is negligible compared to the 1.6-m radius of the balloon. Find the absolute pressure of the helium gas
A spherical water drop, 1.80 ?m in diameter, is suspended in calm air owing to a downward-directed atmospheric electric field E = 452 N/C. What is the weight of the drop
A golfer hits a shot to a green that is elevated 3.20 m above the point where the ball is struck. find the speed of the ball just before it lands.
An air-filled capacitor consists of two parallel plates, each with an area of 7.60 cm2, separated by a distance of 1.70 mm. evaluate the electric field between the plates
The threshold or cut-off frequency for sodium is 4,40x10 14 hz. Calculate the wave length of the electrons ejected from the surface
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