In walking barefoot on red-hot coals, to prevent bits of coal sticking to your feet, it would be safer if your feet are

A) wet.
B) dry.
C) either of these
D) none of the above


Answer: B

Physics & Space Science

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Doug rubs a piece of fur on a hard rubber rod, giving the rod a negative charge. What happens?

a. Protons are removed from the rod. b. Electrons are added to the rod. c. The fur is also charged negatively. d. The fur is left neutral.

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All planets lie in orbits close to the ________ plane

Fill in the blank(s) with correct word

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In which season is Earth farthest from the Sun?

A. when it is autumn in North America B. when it is spring in North America C. when it is summer in North America D. when it is winter in North America

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Particles made up of two quarks must consist of a quark-antiquark pair

Indicate whether the statement is true or false

Physics & Space Science