The ____ of a telescope is a measure of its ability to show fine detail and depends on the diameter of the objective
a. light-gathering power
b. focal length
c. magnifying power
d. resolving power
e. spherical aberration
D
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Components: If a vector pointing upward has a positive magnitude, a vector pointing downward has a negative magnitude.
A. True B. False
X-ray observations of elliptical galaxies reveal large amounts of very hot ________ in their interior
Fill in the blank(s) with correct word
The following three appliances are connected in parallel across an ideal 120-V dc power source: 1200-W toaster, 650-W coffee pot, and 600-W microwave. If all were operated at the same time what total current would they draw from the source?
A) 5.0 A B) 4.0 A C) 20 A D) 10 A
Calcium carbonate is the major component of each of the following except
a. limestone. b. seashells. c. stalagmites. d. bones.