The Mars Curiosity rover, landed on the surface of Mars using
A) balloons
B) a skycrane
C) parachutes
D) airbags
B
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Diamond has a notably high thermal conductivity because of its strong chemical _____________.
Fill in the blank(s) with the appropriate word(s).
The linear momentum of a moving object is:
a. the product of its weight and its speed. b. the product of its mass and the distance it has traveled. c. the product of its mass times its velocity squared. d. the product of its velocity and its mass. e. the sum of its mass and its velocity.
In the diagram below, what is the diameter of Mercury?
a. about 240 km
b. about 2400 km
c. about 24,000 km
d. about 240,000 km
e. about 2.4ยด106 km
If the frequency of a photon is halved, what happens to its energy?
A) It is doubled. B) It is halved. C) It is tripled. D) It is quadrupled. E) It is reduced by one-fourth.