Which of the following does NOT fall into the category of interplanetary debris?
A) comets
B) Kuiper Belt bodies
C) rings around the jovian planets
D) Trojan asteroids
E) meteoroids
C
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A 400-turn circular coil (radius = 1.0 cm) is oriented with its plane perpendicular to a uniform magnetic field which has a magnitude that varies sinusoidally with a frequency of 90 Hz. If the maximum value of the induced emf in the coil is observed to be 4.2 V, what is the maximum value of the magnitude of the varying magnetic field?
a. 59 mT b. 62 mT c. 65 mT d. 68 mT e. 31 mT
A gas in a furnace has an extinction coefficient of 0.01m^-1 and a mean beam length of 10 m. What is the transmissivity of radiation through the gas?
What will be an ideal response?
What is the Hubble constant essentially a measure of?
a. The number of galaxies in the universe. b. The expansion of the universe. c. The age of the Milky Way galaxy. d. The amount of dark matter in an average galaxy.
The greater the wavelength of light, the greater its energy
Indicate whether the statement is true or false