The absolute magnitude of a star is the apparent magnitude it would have if it were 10 pc from Earth
a. True
b. False
Indicate whether the statement is true or false
True
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In the early universe, the electromagnetic and strong nuclear forces were joined together to make the electrostrong force
a. True b. False Indicate whether the statement is true or false
Which of the following lists the planets of our solar system in the correct order from closest to farthest from the Sun?
A) Earth, Mars, Mercury, Venus, Jupiter, Saturn, Uranus, Neptune B) Mercury, Earth, Venus, Mars, Jupiter, Saturn, Neptune, Uranus C) Mercury, Venus, Mars, Earth, Saturn, Jupiter, Neptune, Uranus D) Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune
The velocity of a body is graphed as a function of time. The slope of the graph at any point may be identified with
A. instantaneous speed. B. average velocity. C. average acceleration. D. instantaneous velocity. E. instantaneous acceleration.
Which of the following statements is true:
A. If the electric potential is zero at a point, then the electric field is zero at that point also. B. If the electric field is zero throughout a region of space, then the electric potential is necessarily also zero there C. If the electric field is zero at a point, then the electric potential is zero at that point also. D. If the electric potential is zero throughout a region of space, then the electric field is necessarily also zero there E. The electric field is large where the potential is large, and vice versa.