Which of the following masses separates low mass stars from high mass stars?
A) about 50 solar masses
B) about 1 solar mass
C) about 2 solar masses
D) about 150 solar masses
E) about 0.08 solar masses
C
You might also like to view...
How did Brahe measure highly accurate planetary positions?
A) By careful measurements of the brightness of the planets, as seen from Earth. B) With larger and more elegant sighting instruments. C) By his invention of the technique know as triangulation (measuring the distance between 2 points, and measuring 2 angles, to determine the distance to a 3rd point). D) With the recently-invented telescope. E) With a new type of telescope that used mirrors instead of lenses.
A magnifying glass of focal length 150. mm is used to examine an old manuscript
(a) What is the maximum magnification given by the lens? (b) What is the magnification for relaxed eye-viewing (image at infinity)?
What do we know about the direction of momentum?
a. It has the same direction as the object's speed. b. It has the same direction as the object's acceleration. c. It has the same direction as the object's weight. d. It has the opposite direction to the object's velocity. e. It has the same direction as the object's velocity.
The force on a charged object divided by the charge on the object is __________
Fill in the blank(s) with correct word