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lana66690 [7]
3 years ago
14

Why will air sink if it is colder than the air around it? ​

Physics
1 answer:
yawa3891 [41]3 years ago
8 0

Answer:

The molecules in hot air are moving faster than the molecules in cold air.

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Answer: option A. r = 3x+2y

Explanation:

Vector r is plotted on the graph. On x-axis each small division corresponds to 1 unit. Similarly on y-axis, each small division corresponds to one unit.

The vector is the resultant of addition of its x and y components. we would draw perpendicular to the x-axis and y-axis from the head of vector r.

On x-axis, r_x = +3 units

on y-axis, r_y = +2 units

r = r_x+r_y

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