Author Question: William and Caroline Herschel's map included four of the following hypotheses in their model of the ... (Read 87 times)

Capo · **on:** Jul 27, 2018

William and Caroline Herschel's map included four of the following hypotheses in their model of the galaxy. Which one was the exception?

a. They thought that the holes in the sky were caused by interstellar dust clouds.
b. They proposed that the galaxy had a disk shape.
c. They provided accurate measurements of the distances to stars.
d. They placed the Sun in the center of the galaxy.
e. They found errors caused by a lack of knowledge of the interstellar medium.

Question 2

Newton concluded that some force must act on the Moon because ____.

a. a force is needed to pull the Moon away from straight-line motion
b. a force is needed to pull the Moon outward
c. a force is needed to keep the Moon in motion
d. the Moon has at a constant velocity
e. the Moon has a constant acceleration