Over the course of the year, the Sun's noon altitude varies by ________ degrees
A) 45 B) 23.5 C) 90 D) 47 E) 180
D
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What is the result of the Greenhouse effect on the surface environment of Venus?
A) It has little or no effect. B) Its effect is about the same as on Earth. C) It has reduced the surface temperature by about 30 degrees Celsius. D) It has raised the surface temperature by hundreds of degrees Celsius. E) It causes the surface temperature of Venus to become hotter than the Sun.
A hockey puck slides off the edge of a horizontal platform with an initial velocity of 20 m/s horizontally and experiences no significant air resistance. The height of the platform above the ground is 2.0 m
What is the magnitude of the vertical component of the velocity of the puck just before it hits the ground? A) 20 m/s B) 6.3 m/s C) 13 m/s D) 15 m/s E) 21 m/s
Consider the three situations below, labeled A, B, and C. Ignore friction
When air contains as much water vapor as it can possibly hold for a given temperature, the air is at
A) capacity. B) optimum threshold. C) its evaporation point. D) sublimation point.