The rings of Saturn occupy the region inside Saturn's Roche limit
Indicate whether the statement is true or false
TRUE
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Approximately how long does it take light to travel across the diameter of the Milky Way?
A) 27,000 years B) 100,000 years C) 200,000 years D) 1 million years
The mass of an object is fixed, but its weight varies from location to location
Indicate whether the statement is true or false
In a uniformly expanding universe, which statement best describes the situation as viewed from an observer in Galaxy C (not the Milky Way Galaxy)?
A) Galaxy C observer sees some galaxies moving away, some moving towards itself. B) Galaxy C observer sees all galaxies moving away from the Milky Way Galaxy. C) Galaxy C observer sees all other galaxies moving away from itself.
A 22.0-kg mirror with a surface area of 1.0 m2 and a 98% reflectivity is bombarded by light of average intensity 770.0 W/m2 at an angle of 30.0? to the normal of its surface
If the light has a duration of how much does the velocity of the mirror change during that time? (c = 3.00 × 108 m/s, ?0 = 4? × 10-7 T ? m/A, ?0 = 8.85 × 10-12 C2/N ? m2) A) 120 nm/s B) 4.2 nm/s C) 3.6 nm/s D) 2.1 nm/s