Which of these best describes air pressure?
a
amount of pressure exerted by dust particles i...
Which of these best describes air pressure?
a
amount of pressure exerted by dust particles in the atmosphere
b
amount of pressure exerted in the air caused by gravity and matter moving on all objects
c
amount of pressure caused by volcanoes and wildfires in the atmosphere
d
amount of pressure in the atmosphere due to the movement of earth
Answers: 1
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When you see distant streetlights through smog, they look dimmer and redder than they do normally. but when you see the same streetlights through fog or falling snow, they look dimmer but not redder. use your knowledge of the interstellar medium to discuss the relative sizes of the particles in smog, fog, and snowstorms compared to the wavelength of light.
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Tara goes on a camel safari in africa. she travels 5 km north, then 3 km east and then 1 km north again. what distance did she cover? what was her displacement?
Answers: 1
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The charge on a charged sphere is; 1. concentrated at its center 2. distributed uniformly throughout its volume 3. clustered on its center 4. distributed uniformly over its surface
Answers: 3
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