a cliff diver (with a mass of 90 kilograms ) boldly plunges from a rock ledge into a deep pool, hitting the water in 3
seconds. (KF/M)
A. what is his velocity when he hits the water?
B. how high is the ledge?
1 5 the atmosphere of Venus is primary carbon dioxide (96.5%). it has an average temperature of 735 K, the same
temperature regardless of weather its day or night. Mercury, a planet that’s closer to the sun, has no atmosphere. its daily
high temperature is 700 K and nightly low is 100 K (the K scale starts at absolute 0, so room temperature is 300K ) how is it
possible for Venus to be warmer than Mercury, and why doesn’t the day/night temperature of Venus change? explain.
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