Imagine that Earth were in a stable orbit at its current distance from the Sun, but around a different star that had twice the mass of the Sun. Which of the following would have to be true?A. Earth's year would be shorter. B. Earth's year would be longer. C. Earth's mass would be lower. D. Earth's mass would be higher.

Landmasses on a flat map look distorted because

Some gamma ray bursts are hypothesized to come from mergers of neutron stars or black holes. if this hypothesis is correct, what else should we in principle be able to detect from such mergers? a. gravitiational waves b. x-ray bursts c. significant disruption of gas thousands of light-years away in the surrounding galaxy d. an "afterglow" of bright visible light, lasting for weeks

What is the value of x in this triangle? select the correct answer. a. 53 b. 62 c. 65 d 118