Most of the dark matter in the Galaxy lies in the disk and galactic center

Indicate whether the statement is true or false


FALSE

Physics & Space Science

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Why were scientists surprised to find evidence of subsurface liquid water on Enceladus?

A) Enceladus was thought to be too far from the Sun to have a subsurface zone of liquid water. B) Enceladus was thought to be too small to have a subsurface zone of liquid water. C) Enceladus was not expected to have any water or ice in its composition. D) Scientists expect that Enceladus would have lost its liquid water to solar wind stripping by now.

Physics & Space Science

Why does something weigh less on the Moon than on Earth?

A. The Moon has no atmosphere to apply a downward force on surface objects. B. Earth's gravity pulls in the opposite direction as the Moon's, so the net force is reduced. C. The farther something is from Earth, the lower its weight. D. The Moon's lower mass creates a lower force of gravity at its surface. E. The object's weight is the same on the Moon as it is on Earth.

Physics & Space Science

What law explains why a rotating, collapsing cloud forms a flat protostellar disk around a protostar?

A) Kepler's third law B) the universal law of gravitation C) Wien's law D) conservation of angular momentum

Physics & Space Science

A certain amount of a monatomic gas is maintained at constant volume as it is cooled by 50 K. This feat is accomplished by removing 400 J of energy from the gas. How much work is done by the gas?

A) zero B) 200 J C) 400 J D) -400 J E) none of the above

Physics & Space Science