The particles in Saturn's E ring probably come from volcanic eruptions on Enceladus
Indicate whether the statement is true or false
TRUE
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Compton Scattering: X-rays with a wavelength of 0.00100 nm are scattered by free electrons at 130° from their original direction. What is the kinetic energy (in keV) of each recoil electron? (melectron = 9.11 × 10-31 kg, c = 3.00 × 108 m/s, 1 eV = 1.60 × 10-19 J, h = 6.626 × 10-34 J ? s)
Fill in the blank(s) with the appropriate word(s).
From lowest frequency to highest frequency, which of the following correctly orders the different regions of electromagnetic radiation?
A) infrared, visible light, ultraviolet, x-rays, gamma rays, radio B) radio, infrared, visible light, ultraviolet, x-rays, gamma rays C) visible light, infrared, x-rays, ultraviolet, gamma rays, radio D) gamma rays, x-rays, visible light, ultraviolet, infrared, radio E) Radio, x-rays, visible light, ultraviolet, infrared, gamma rays
According to the nebular theory for the formation of the solar system,
A) planets should be rotating in the same direction as they orbit the Sun B) planets can be rotating in any random direction compared to the direction they orbit the Sun C) planets should be rotating in the opposite direction to the direction they orbit the Sun D) no prediction is made as to the directions of rotations of the planets
Stable equilibrium is:
a. an equilibrium state where any small rotation results in a torque that acts to produce rotation back in the opposite direction. b. any form of equilibrium, because all equilibrium conditions are stable. c. an equilibrium state where nothing is moving. d. an equilibrium state where there is no net torque or net force. e. an equilibrium state where no torque is involved.