Data from a weather satellite was used to generate the image below. The colored regions represent warm portions of the atmospher
e.
Which fact about electromagnetic radiation allows scientists to gather such information about the Earth's atmosphere?
A.
Some of the Sun's visible light is scattered as it passes through the Earth's atmosphere.
B.
The warmer a region of the atmosphere is, the more infrared radiation it emits.
C.
Radio waves can pass through buildings and other solid structures.
D.
Ozone in the Earth's upper atmosphere absorbs ultraviolet radiation.
Which fact about electromagnetic radiation allows scientists to gather such information about the Earth's atmosphere?
A.
Some of the Sun's visible light is scattered as it passes through the Earth's atmosphere.
B.
The warmer a region of the atmosphere is, the more infrared radiation it emits.
C.
Radio waves can pass through buildings and other solid structures.
D.
Ozone in the Earth's upper atmosphere absorbs ultraviolet radiation.
2 answers:
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Assume a maximum stopping acceleration of g/2 where g is acceleration due to gravity.
Answer:
2.99 m/s
Explanation:
Stopping distance, s = 3 ft = 0.914 m
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a = g/2 = 4.9 m/s²
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substitute the values to find the speed of train: