____________ in Saturn's rings is/are produced by the gravitational interaction of Mimas with the particles in the rings and appears as a large ____________ in the rings
a. Cassini's division; gap
b. Cassini's division; clump
c. Moons; gap
d. Moons; clump
a
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Scientific notation is used in science because
a. it makes it easy to write big or small numbers. b. all astronomical distances are expressed in metric units. c. it makes conversions between units easy. d. all of the above
Lenz's Law: The wire in the figure carries a steady current I. What is true about the currents induced in each of the three loops shown? The wire and the three loops are all in the same plane.
A. No current is induced in any loop. B. The currents are counterclockwise in all three loops. C. The currents are clockwise in all three loops. D. Loop A has clockwise current, loop B has no induced current, and loop C has counterclockwise current. E. Loop A has counterclockwise current, loop B has no induced current, and loop C has clockwise current.
A hydraulic lift has a small piston with a diameter 5.0 cm piston and the large piston with a diameter of 25 cm. What force must be applied on the small piston in order to lift a car on the large piston that weighs 13,000 N?
A. 520 N B. 5200 N C. 260 N D. 2600 N
Observationally contrast the discoveries of most comets and asteroids
What will be an ideal response?