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