Mercury orbits the sun about once every 80 days. Mercury is observed to keep the same side facing the sun at all times. If Mercury had oceans, how much time would elapse between its high tides
A. there would be no tides
B. 40 days
C. 80 days
D. 160 days
Ans: A. there would be no tides
You might also like to view...
What is the Great Wall?
A) It is a ridge on the Moon near the crater Birt. B) It is the distance beyond which astronomers cannot view any more galaxies or even quasars. C) It is a large sheet of galaxies. D) It is the time before the universe started expanding, about which we can never know anything. E) It is an enormous intergalactic cloud of dust and gas that hides more distant galaxies.
The Big Bang
A) took place within space. B) marked the beginning of space and time. C) occurred as a result of disturbances within the Large Magellenic cloud. D) took place within time.
In units of yards, how far from the Big Bang is the Recombination period, when the gas becomes transparent to light?
a. much, much less than a yard b. about a yard c. about 5 yards d. about 10 yards
Novae are more closely related to type II than to type I supernovae
Indicate whether the statement is true or false