Saturn's F ring and the rings of Uranus are similar in that
a. they are made of dark material.
b. they are made of icy material.
c. they are found near large moons.
d. they show well defined spokes.
e. they are very narrow.
E
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Requires 6.0 J of work is needed to push a 2.0-kg object from point A to point B of the frictionless ramp as shown in the figure. What is the length s of the ramp from A to B?
What will be an ideal response?
Natural line broadening can be understood in terms of the
A) de Broglie wave length. B) uncertainty principle. C) Schrodinger wave equation. D) Pauli exclusion principle. E) quantum numbers.
When a ferromagnetic material that has been magnetized is brought to a temperature greater than the Curie temperature, what happens to its residual magnetism?
a. Nothing happens to the residual magnetism. b. The residual magnetism disappears. c. The residual magnetism reaches it's highest value. d. All the magnetic domains causing magnetism become a single domain. e. The material of the magnet melts causing currents that are magnetic.
Which statement is incorrect?
a. A kilogram has an equivalent weight greater than that of a pound. b. A kilometer is longer than a mile. c. A meter is longer than a yard. d. A liter is larger than a quart.