These diagrams show a raisin cake before it is put in the oven and again one hour later after it has expanded during baking. Suppose you lived in Raisin 3 (the raisin labeled "3"). What would you have noticed about Raisin 2 during baking?
A) Raisin 2 is moving away from you at a speed of 4 cm/hr.
B) Raisin 2 always stays in the same place but gets bigger in size.
C) Raisin 2 is moving away from you at a speed of 2 cm/hr.
D) Raisin 2 is moving away from you at a speed of 6 cm/hr.
E) Raisin 2 is moving toward you at a speed of 2 cm/hr.
C) Raisin 2 is moving away from you at a speed of 2 cm/hr.
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Resolution: What is the minimum distance between two points on the Moon that could be just resolved by the Keck telescope in Hawaii using a wavelength of 600 nm and having perfect optics? The diameter of this telescope mirror system is 10 m, and the distance to the Moon is 380,000 km.
Fill in the blank(s) with the appropriate word(s).
Seasons on Earth are caused by
A) Earth's axis tilt. B) Earth's varying distance from the Sun. C) Earth's varying orbital speed around the Sun. D) the gravitational influence of the Moon. E) the Sun's gravity.
A telescope whose objective is a lens and contains no mirrors is a(n) ____ telescope
a. Refracting b. Reflecting c. Deflecting d. Compound e. Retracting
What is differentiation in planetary geology?
A) the process by which gravity separates materials according to density B) the process by which different types of minerals form a conglomerate rock C) any process by which a planet's surface evolves differently from another planet's surface D) any process by which one part of a planet's surface evolves differently from another part of the same planet's surface E) any process by which a planet evolves differently from its moons