Process of Science: Explain the varied ways in which we continue to explore the Solar System
What will be an ideal response?
We learned about the nature of planets through observations of their motions with our eye and telescopes. We continue to study the planets and other Solar System objects with ground-based telescopes but also use space telescopes and spacecraft. Humans have landed on the Moon and returned with lunar samples. Robotic spacecraft have visited all the planets and provided our most detailed images of them, as well as in some cases sent probes to their surfaces or to into their atmospheres.
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A projectile is launched straight upward at 50 m/s. Neglecting air resistance its speed upon returning to its starting point is
A) less than 50 m/s. B) 50 m/s. C) more than 50 m/s.
How much charge must pass by a point in a wire in 10 s for the current inb the wire to be 0.50 A?
A) 2.0 C B) 20 C C) 0.050 C D) 5.0 C
The most massive planet in our solar system is
A) Saturn. B) Uranus. C) Mars. D) Jupiter. E) Neptune.
Suppose you throw an apple horizontally. Neglecting air resistance, just after you release the apple from your hand, the net force on the apple is
A) zero. B) directed horizontally forward. C) directed horizontally backward. D) directed downward. E) directed upward.