Two satellites are launched into circular orbits about the Earth. The one closer to the Earth has a period of 90 minutes. The one farther away will have a period which is ________ (longer than, shorter than, or the same as) 90 minutes.
Fill in the blank(s) with the appropriate word(s).
longer
longer than
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From observations made of Uranus, scientists have discovered that belt-zone circulation is dominated by what planetary characteristic?
a. rotation b. orbital period c. direction of sunlight d. atmospheric elements e. interior heating
When you view color in a soap film with sunlight in back of you, a friend on the other side of the soap film likely sees
A) the same color. B) a different color. C) only your head.
When a hydrogen atom absorbs a photon that raises it to the n = 7 state, what is the greatest number of photons that can be emitted by that atom as it returns to the ground state?
a. 6 b. 7 c. 8 d. 14 e. The correct answer is not given.
The electrical force between two charged objects depends on
A. the total number of protons in both objects. B. the sum of the net charges on the objects. C. the product of the net charge on each of the two objects. D. just the magnitude of the largest charge. E. the number of electrons in the objects.