Normal atmospheric pressure is

a. 14.7 psi
b. 1 N/m2
c. zero
d. 760 mm of mercury
e. 101,000 pascals
f. none of the above


A, D, E

Physics & Space Science

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A lunar eclipse can only occur when the Moon is ____

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The composition of Earth's atmosphere has not changed since its formation.

Answer the following statement true (T) or false (F)

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How many types of quarks are there, and how many types of antiquarks?

A.) 24 quarks and 24 antiquarks. B.) 12 quarks and 6 antiquarks. C.) 6 quarks and 6 antiquarks. D.) 3 quarks and 3 antiquarks. E.) 30 quarks and 0 antiquarks.

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The attraction of the Moon causes tides on Earth. Because of friction, tidal action slows the rotation of Earth. What happens to the angular momentum of the Earth-Moon system, and does this affect the motion of the moon?

What will be an ideal response?

Physics & Space Science