Venus has an unusual rotation rate because

a. it is very slow.
b. it is very slow and retrograde.
c. its obliquity is 90 degrees.
d. it is very fast.
e. it is very fast and retrograde.


b. it is very slow and retrograde.

Physics & Space Science

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A block is pushed up a frictionless 30° incline by an applied force as shown. If F = 25 N and M = 3.0 kg, what is the magnitude of the resulting acceleration of the block?



a.
2.3 m/s2

b.
4.6 m/s2

c.
3.5 m/s2

d.
2.9 m/s2

e.
5.1 m/s2

Physics & Space Science

Which of the following is conserved?

a. Protons. b. Electrons. c. Element Identity. d. Atomic Number. e. Nucleons.

Physics & Space Science

The force that holds atoms together to form molecules is

1) electric, 2) magnetic, 3) gravitational, 4) nuclear, and the force that holds the protons in a nucleus together is 5) electric. 6) magnetic. 7) gravitational. 8) nuclear.

Physics & Space Science

A hole is poked through the metal side of a drum holding water. The hole is 28 cm below the water surface. What is the initial speed of outflow?

a. 1.9 m/s c. 3.2 m/s b. 2.3 m/s d. 3.5 m/s

Physics & Space Science