A possible evolutionary sequence is quasar to ________ to normal spiral galaxy
Fill in the blank(s) with correct word
Seyfert galaxy
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In the grapefruit model of the solar system, it would take a few minutes to walk from the Sun to the inner edge of the Kuiper Belt (Pluto)
Indicate whether the statement is true or false
A changing current in one loop of wire can induce a current in another loop of wire even though the wires do not touch. The induced current appears almost instantaneously for loops close together. How can this energy exchange happen?
a. This is one of those things for which science has no adequate explanation yet. b. The second loop is affected by the thermal exchange from the heating of the first loop. c. It is a gravitational effect on the electrons. d. It is done via an electromagnetic wave.
Venus has a high reflectivity because of its
A) light-colored rocks. B) snow. C) clouds. D) dust storms. E) volcanic ash.
When a ball is thrown straight up, the acceleration at its highest point is
A) upward. B) downward. C) zero. D) horizontal. E) minimum.