(b) Earth's solar constant (called solar irradiance in your book) is 1365 W/m2. Following the procedure from class, calculate the solar constant for Venus (show your work). (c) Venus's albedo is 0.77. Assuming Venus is in energy balance with the sun, calculate the black body temperature of Venus. (d) The observed mean surface temperature of Venus is about 760 K. Compare this to your calculation in part (c). Based on these values, would you assume there is a strong or weak greenhouse effect in the Venus atmosphere?

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Special Relativity

The theory of special relativity discusses how space and time are related to objects traveling along a straight line at a constant speed. Simply stated, as an object reaches the speed of light, its mass becomes infinite and it is unable to move faster than light. This interstellar speed limit has been the topic of much debate in astronomy, and also in science fiction when people consider how to fly over large distances.