Which of the following is NOT a quality of light?
a) Intensity
b) Color
c) Acceleration
d) High Speed
Ans: c) Acceleration
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Exclusion Principle: Neon has 10 electrons. What is the value of Z of the next higher element that has chemical properties very similar to those of neon?
A. 11 B. 17 C. 18 D. 19 E. 36
The angular diameters of the Moon and Sun vary slightly because the orbits of the Moon and Earth are slightly elliptical
a. True b. False Indicate whether the statement is true or false
If the radial velocity of a star is positive, the star is moving _________________ you
a. parallel to b. away from c. towards d. in circles around
Thin Lenses: A seed is 15 mm in front of a converging lens, and the image of the seed is 4.0 mm behind the lens. What is the focal length of the lens?
A. 11 mm B. 5.5 mm C. 3.8 mm D. 3.2 mm