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Physics, 22.06.2019 18:30
An electron in an x-ray machine is accelerated through a potential difference of 1.00 Γ 104 v before it hits the target. what is the kinetic energy of the electron in electron volts?
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Physics, 23.06.2019 00:10
An electromagnetic wave with frequency 65.0 hz travels in aninsulating magnetic material that has dielectric constant 3.64 andrelative permeability 5.18 at this frequency. the electric fieldhas amplitude 7.20 \times 10^{ - 3} {\rm v}/{\rm m}. a. what is the speed of propagation of the wave? b.what is the wavelength of the wave? c.what is the amplitude of the magnetic field? d.what is the intensity of the wave?
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Physics, 23.06.2019 03:20
2. which of the following does not affect the electrical resistance of a body? a. material composing the body b. bodies directly surrounding the body c. length of the body > d. temperature of the body
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Physics, 23.06.2019 21:30
Avery light ping-pong ball moving east at a speed of 4 m/s collides with a very heavy stationary bowling ball. the ping-pong ball bounces back to the west, and the bowling ball moves very slowly to the east. which object experiences the greater magnitude impulse during the collision?
Answers: 3
When a bullet falls to the earth and comes to a stop, its potential energy is
A. The same as its m...
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