What is the fastest speed in the universe?
a. The speed of light.
b. The speed of sound.
c. 1.1620 × 10^4 mph.
d. The speed of the world's fastest rocket ship.
e. The speed of electrons in a wire.
a
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Where can you find a midocean rise?
a. Mediterranean Sea b. Pacific Ocean c. Arctic Ocean d. Red Sea e. Indian Ocean
Which of the following objects may have organic particles on its surface as a result of the interaction of sunlight with methane in its upper atmosphere?
a. Io b. Titan c. Mimas d. Ganymede e. Callisto
In what region of Earth would you have to be to have the Sun pass through your zenith at some time during the year?
What will be an ideal response?
A freight train consists of an engine and several identical cars on a level track. Which of the following statements is true?
A. if the train is moving at constant speed, the engine must be pulling with a force greater than the train's weight B. if the train is moving at constant speed, the engine's pull on the first car must exceed that car's backward pull on the engine C. if the train is coasting, its inertia makes it slow down and eventually stop D. if the train is moving at constant speed the engine's pull must be equal to the friction