Answer: B, the speed of baseball pitch
Explanation:
Correct answer is option A.
Tropopause, Stratopause and Mesopause have all in common aspect that is point of maximum temperature in its layer of the atmosphere. All layers of atmosphere observe abrupt change in temperature. Tropopause is the boundary between Troposphere and Stratosphere. Stratopause is the boundary between Stratosphere and Mesosphere. Mesopause is the boundary between Mesosphere and Thermosphere. These all boundaries are ranges between altitude of 0 to 80 km.
Answer:
Explanation:
a) Power consumption is 4100 J/min / 60 s/min = 68.3 W(atts)
work done raised the potential energy
b) 75(9.8)(1000) / (3(3600)) = 68.055555... 68.1 W
c) efficiency is 68.1 / 68.3 = 0.99593... or nearly 100%
Not a very likely scenario.
Lydia is an example of an optimist. Optimists always look at the positive side of a particular situation. They believe in a positive result. Optimist always see "the bright side" as opposed to the pessimist. The word optimism comes from latin word "optimum" which means "the best".