A satellite follows an elliptical orbit about a planet as shown. The speed of the satellite is greatest when the satellite is in position
1) A.
2) B.
3) C.
4) D.
5) same at all points in its orbit.
At which position is there no component of force in the direction of the satellite's instantaneous velocity?
6) A
7) B
8) C
9) D
10) A component of force exists in the direction of instantaneous velocity at every point along the orbital path.
Answer: 1, 6
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A combination of two or more substances in which they no longer retain their chemical properties is called a(n)
A) mixture. B) compound. C) heterogeneous mixture. D) periodic trend. E) suspension.
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A) a few seconds B) about a month C) less than a millionth of a second D) a few hours E) about half the year
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