Because the Hubble constant equals 70 km/s/Mpc, a galaxy with a recession velocity of 4,900 km/s would be a distance of ____ Mpc from Earth
a. 0.014
b. 70
c. 4930
d. 4970
e. 343,000
b
Physics & Space Science
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Why did the Moon's internal heat escape more rapidly than Earth's?
What will be an ideal response?
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The celestial prime meridian is an imaginary half-circle running from the north celestial pole to the south celestial pole and crossing perpendicular to the celestial equator at the point of the
a. autumnal equinox. b. summer solstice. c. vernal equinox. d. winter solstice.
Physics & Space Science
What is the chance of three heads and two tails being the result of the toss of five coins?
1.1/32 2.5/32 3.5/16 4.1/2
Physics & Space Science
A 5.0-C charge is 10 m from a small test charge. What is the magnitude of the force experienced by a 1.0 nC charge placed at the location of the test charge?
A) 0.045 N B) 0.45 N C) 4.5 N D) 45 N E) 450 N
Physics & Space Science