A high-pressure air mass that moves over a region and then becomes stationary may give rise to a(n) ______________ inversion
Fill in the blank(s) with correct word
subsidence
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You note that a particular star is directly overhead. It will be directly overhead again in
A) 1 hour. B) 12 hours. C) 23 hours 56 minutes. D) 24 hours. E) 24 hours 4 minutes.
The impact of a 100-meter object will not cause "widespread" devastation, but it could still kill millions of people if it struck a major city. In Part C, you found that the probability of such an impact in any single year is only 1 in 1000. Suppose we learn that it has already been 1200 years since the last such impact. What would that tell us?
A. Nothing; we would still presume that the chance of such an impact during the next year is 1 in 1000. B. We are clearly due for such an impact, so the actual probability for the coming year must be much higher than 1 in 1000. C. We are overdue for the impact of a 100-meter object, so we should expect the impact of an even larger object during the next few years. D. There must be something wrong with the graph, because if the 1 in 1000 probability were correct, then there would have been an impact some time during the past 1000 years. Since there wasn't, the actual probability must be lower than 1 in 1000.
What led Kepler to abandon circular orbits and his discovery that planetary orbits are ellipses?
A) a deviation between observed and model values that was much larger than the observation uncertainties B) a desire to gain prestige by using a more complicated model C) the observation of a comet moving on a highly eccentric orbit
Hector drives a pickup truck horizontally at 9.00 m/s. He is transporting a crate of delicate lead crystal. If the coefficient of static friction between the crate and the truck bed is 0.740, what is the minimum stopping distance for the truck so the crate will not slide?
a. 5.58 m b. 6.66 m c. 81.0 m d. 15.6 m e. 2.79 m