Earth's temperature the sun emits energy at a rate of about 3.9 · 1026 w. at earth, this sunshine gives an incident energy flux i, of about 1.4kw m”. in this problem, you'll investigate whether any other planets in our solar system could support the sort of water-based life we find on earth. consider a planet orbiting at a distance d from the sun (and let de be earth's distance). the sun's energy flux at distance d is 7 = le(d,/d)2, because energy flux decreases as the inverse square of distance. call the plant's radius r, and suppose that it absorbs a fraction a of the incident sunlight, reflecting the rest back into space. the planet intercepts a disk of sunlight of area 7r? , so it absorbs a total power of tr’al. earth's radius is about 6400 km.

Frequency of electromagnetic waves that a radio station is assigned. what do you call this type of wave?

If an object is thrown in an upward direction from the top of a building 1.6 x 102 ft. high at an initial velocity of 21.82 mi/h, what is its final velocity when it hits the ground?

Sometimes questions that involve graphs will ask you to consider the effect of a changing factor or factors. problem​ statement: right arrow the line labeled d1 in the graph to the right shows the number of cups of lemonade that caroline and emily can sell at their lemonade stand at various prices. caroline and emily have noticed that they sell more lemonade when​ it's hotter. click anywhere on the graph to open a window with a control labeled temperature. if you use the slider to change the​ temperature, the line will shift. change the temperature from 80 degrees to 100 degrees. ​question: right arrow at a price of​ $0.50, how many more or fewer cups of lemonade do caroline and emily sell when the temperature is 100 degrees than when the temperature is 80​ degrees? ​(note: indicate the change in cups of lemonade​ sold: fewer will be a negative number and more will be a positive​ number)