How long a star can stay on the main sequence depends upon its size
a. True
b. False
Indicate whether the statement is true or false
False
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Which of the following statements is true of Jupiter's interior?
A) High pressure creates a sudden boundary between liquid and gas. B) It is four times colder than the Sun's surface. C) The rocky core at Jupiter's center contains light-weight elements. D) It is composed of a material that is a very good conductor of electricity.
The correct way to connect an ammeter and a voltmeter to make measurements of a circuit element is
A. both should be in parallel with the circuit element B. both should be in series with the circuit element C. an ammeter is always in series with the circuit element and a voltmeter is always in parallel with the circuit element D. an ammeter is always in parallel with the circuit element and a voltmeter is always in series with the circuit element
The electric field associated with a uniformly charged hollow metallic sphere is the greatest at:
a. the center of the sphere. b. the sphere's inner surface. c. infinity. d. the sphere's outer surface.
If kinetic energy is desired, the variable ? in would be represented by:
