Which of the following is the most variable constituent of air?
a. Argon
b. Oxygen
c. Water vapor
d. Nitrogen
c
Physics & Space Science
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The dynamo effect is believed to produce the ____________________ of the Sun
Fill in the blank(s) with correct word
Physics & Space Science
Electrical charges and magnetic poles have many similarities, but one difference is:
a. opposite magnetic poles repel. b. one magnetic pole cannot create magnetic poles in other materials. c. a magnetic pole cannot be isolated. d. magnetic poles do not produce magnetic fields.
Physics & Space Science
The wavelength of a 45-kg teenager moving at 5 m/s on a skateboard is about
a. 5 × 10^-37 m. b. 3 × 10^-36 m. c. 7 × 10^-34 m. d. 0.1 m. e. 5 m.
Physics & Space Science
What is the mass of a woman who weighs 110 lb?
A) 50 kg B) 55 kg C) 73 kg D) 110 kg E) 242 kg
Physics & Space Science