Which fact about Mars is NOT true?

a) There are giant volcanoes on Mars, larger than any on Earth.
b) There was once water on the surface of Mars.
c) The Viking spacecraft landed on Mars in 1976.
d) It is always colder than freezing on Mars surface.
e) Mars has a thicker atmosphere than Earth does.


Ans: e) Mars has a thicker atmosphere than Earth does.

Physics & Space Science

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Which of the following applies to Titan?

A) It is the most volcanically active body in the solar system. B) It is thought to have a deep, subsurface ocean of liquid water. C) It is the only moon in our solar system with an atmosphere thicker than Earth's atmosphere. D) It is the largest moon in the solar system. E) It is probably a captured Kuiper belt object.

Physics & Space Science

A taxicab moves five blocks due north, five blocks due east, and another three blocks due north. Assume all blocks are of equal size. How far is the taxi from its starting point?

a. 13 blocks c. 9.2 blocks b. 9.4 blocks d. 8.6 blocks

Physics & Space Science

During a protostar's T Tauri phase, it:

A) begins a period of reduced activity. B) expands dramatically. C) lies on the main sequence. D) may develop very strong winds. E) changes its spin direction.

Physics & Space Science

Time Dilation: You are moving past the Earth at 0.990c and notice your heart beating 88 beats per minute.(a) If a doctor on Earth measures your heart rate as you zip past, what will the measured rate be?(b) If you had been moving 99.99% the speed of light, what rate would you have observed your heart beats?

What will be an ideal response?

Physics & Space Science