To tell the difference between a neutron star and a black hole in an X-ray binary, we must find the temperature of the object
Indicate whether the statement is true or false
F
Physics & Space Science
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On the H-R diagram, white dwarfs lie Sirius B and Procyon B lie:
A) at the top left. B) at the top right. C) close to the Sun, near the center. D) at the lower left. E) at the lower right.
Physics & Space Science
The standard exam page is 8.50 inches by 11.0 inches. Its area in cm2 is
a. 19.5. b. 36.8. c. 93.5. d. 237. e. 603.
Physics & Space Science
An automobile's acceleration may be changed by using the
a. windshield wipers. b. steering wheel. c. radio. d. horn.
Physics & Space Science
In the figure, if Q = 30 ?C, q = 5.0 ?C, and d = 30 cm, what is the magnitude of the electrostatic force on q?
a.
15 N
b.
23 N
c.
zero
d.
7.5 N
e.
38 N
Physics & Space Science