What could explain the darker appearance of moons and rings in the outer solar system?
A) They shine by the diminished light at that great distance from the Sun.
B) They are made of small, sooty particles and radiation darkening with loss of volatile bright ices.
C) They are composed of basaltic eject from the volcanism on Ariel and Triton.
D) They are made of water ice that reflects light much more poorly at the very low temperatures of these moons.
E) They are composed of mostly rocky material, like S type asteroids.
B
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A(n) ____ is a small circle whose center is located on the circumference of another larger circle
a. equant b. deferent c. retrograde loop d. ellipse e. epicycle
Series/Parallel Circuits: What is the magnitude of the potential difference between points B and C for the circuit shown in the figure? The battery is ideal, and all the numbers are accurate to two significant figures.
A. 6.0 V B. 4.0 V C. 3.0 V D. 2.0 V
Grandfather clocks are designed so they can be adjusted by moving the bob at the bottom of the pendulum up or down. Suppose you have a grandfather clock at home that runs slow
Which of the following adjustments of the bob would make it more accurate? (There could be more than one correct choice.) A) Raise the bob. B) Lower the bob. C) Add more mass to the bob. D) Remove some mass from the bob. E) Increase the amplitude of swing by a small amount.
Calculate the centripetal force on a 3.0-kg object moving in a horizontal circular path of 20-m radius with a speed of 8.0 m/s