[Answered] The planet Mercury a. has retrograde motion. b. is the closest planet to Venus. c. is the ...

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Author Question: The planet Mercury a. has retrograde motion. b. is the closest planet to Venus. c. is the ... (Read 70 times)

Arii_bell

Hero Member
Posts: 596

on: Jul 28, 2018

The planet Mercury
a. has retrograde motion.
b. is the closest planet to Venus.
c. is the smallest of the terrestrial planets.
d. has a uniquely circular orbit.

Question 2

A Doppler red shift indicates
a. a shift toward lower frequencies.
b. a shift toward shorter wavelengths.
c. that a light source is approaching relative to the observer.
d. none of these.

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Marked as best answer by a Subject Expert

ErinKing

Sr. Member
Posts: 362

Reply #1 on: Jul 28, 2018

Answer to Question 1

c

Answer to Question 2

a

Arii_bell

Member
Posts: 596

Reply 2 on: Jul 28, 2018

Gracias!

nanny

Member
Posts: 313

Reply 3 on: Yesterday

Excellent

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