Stars to the upper right of the Hertzsprung-Russell diagram tend to be relatively
A) hot and blue.
B) long lasting.
C) huge.
D) yellow and of average size.
Answer: C
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What would be the gravitational force that a planet with the same density as Earth and having twice Earth's radius exerts on a 59.1-kg astronaut?
A) 580 N B) 290 N C) 1160 N D) 2320 N E) 1200 N
You press a stick that has a varying cross-sectional area horizontally between the palms of your hands. The area of the stick pushing against your left palm is twice the area of the stick pushing against your right palm.The pressure on your left palm is __________ the pressure on your right palm
Fill in the blank(s) with correct word
A dictator has built a bunker for his use in emergencies. Its dimensions are shown below. When it floods to ground level during a tropical storm, the gauge pressure at point A, in Pa, is
a.
3.92 × 105.
b.
4.90 × 105.
c.
5.39 × 105.
d.
5.88 × 105.
e.
6.89 × 105.
Exhibit 16-1
A graph of position versus time for an object oscillating at the free end of a horizontal spring is shown below.
?
?
Use this exhibit to answer the following question(s).
Refer to . The point at which the object has negative velocity and zero acceleration is
a.
A
b.
B
c.
C
d.
D
e.
E