Each of the following lists two facts. Which pair can be used with Newton's version of Kepler's third law to determine the mass of the Sun?
A) Mercury is 0.387 AU from the Sun, and Earth is 1 AU from the Sun.
B) The mass of Earth is 6 × 1024 kg, and Earth orbits the Sun in 1 year.
C) Earth rotates in 1 day and orbits the Sun in 1 year.
D) Earth is 150 million km from the Sun and orbits the Sun in 1 year.
E) Jupiter is the most massive planet and has a mass of 1.9 × 1027 kg.
D
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General relativity deals with
A. stationary reference frames B. reference frames moving at constant velocities C. accelerated reference frames
RC Circuits: An uncharged capacitor is connected in series with a resistor, a dc battery, and an open switch. At time t = 0 s, the switch is closed. Which of the graphs below best describes the potential difference V across the capacitor as a function of time t?
A. A B. B C. C D. D E. E
Assume everyone in the United States consumes one soft drink in an aluminum can every two days. If there are 270 million Americans, estimate how many tons of Aluminum needs to be recycled each year if each can weighs 1/16 pound and one ton = 2000 pounds.
A. 750,000 tons B. 1.5 million tons C. 1.75 million tons D. 3 million tons E. 1,600,000 tons
The magnification produced by a plane mirror is ________ (sign and magnitude).
What will be an ideal response?