Both Pluto and Charon are tidally locked to always keep the same faces toward each other, rotating and revolving around their common center of mass every 14.2 hours
Indicate whether the statement is true or false
FALSE
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A light beam is traveling inside a glass block that has an index of refraction of 1.46. As this light arrives at the surface of the block, it makes an angle of 53.0° with the normal
At what angle with the normal in the air will it leave the block? A) 33.2° B) It will not leave. C) 43.2° D) 59.1°
An object with a nonzero rest mass moving at the speed of light would have
A. time pass at an infinitely fast rate. B. infinite apparent mass. C. no momentum. D. infinite volume.
Which of these was NOT a difficulty initially met in explaining the photoelectric effect?
a. The transferred kinetic energy seemed to work too quickly. b. If light is a wave, its amplitude should have governed the energy imparted to electrons to cause their emission, and frequency should have had the effects it had. c. Increased intensity of the light did not increase the maximum kinetic energy of emitted electrons. d. Increased frequency of the light increased the maximum kinetic energy of the electrons. e. Electrons could not escape from solid materials.
Which of the following statements about the celestial equator is true at all latitudes?
A) It extends from your horizon due north, through your zenith, to your horizon due south. B) It cuts the dome of your local sky exactly in half. C) It represents an extension of Earth's equator onto the celestial sphere. D) It lies along the band of light we call the Milky Way. E) It extends from your horizon due east, through your zenith, to your horizon due west.