What is the composition of Jupiter?
a. mostly carbon dioxide and methane
b. mostly methane
c. mostly helium and carbon dioxide
d. mostly nitrogen
e. mostly hydrogen and helium
e
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Which one of the diagrams below is not a possible electric field configuration for a region of space which does not contain any charges?
A.
B.
C.
D.
E.
Although it has no liquid water, Mercury has a tidal bulge
Indicate whether the statement is true or false
A ball is tied to the end of an 80.0-cm string and swings in a vertical circle about a fixed center under the influence of gravity. The speed of the mass at the bottom of the swing is 6.00 m/s. Which of the following statements is true?
A) The ball does not have enough energy to reach the top of the circle. B) The ball has enough energy to reach the top of the circle but the string becomes slack before it can reach that point. C) The ball has enough energy to continue revolving in a complete vertical circle. D) This question cannot be answered without knowing the mass of the ball. E) This question cannot be answered without knowing the tension in the string.
A massive star may change its color and size notably, but its high luminosity remains fairly constant
Indicate whether the statement is true or false