When air<span> particles bunch up, it's </span>called<span> a compression-rarefaction.
When the </span>particles spread apart<span> its </span>called<span> a rarefaction.
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Answer:
76.73 ft/s
Explanation:
Let the final velocity is v.
initial velocity, u = 96 ft/s
g = 32 ft/s²
height, h = 52 feet
use third equation of motion
v² = u² - 2 gh
v² = 96 x 96 - 2 x 32 x 52
v = 76.73 ft/s
Thus, the speed of the ball as it reaches the ground is 76.73 ft/s.
F=m*(v^2/r)
F=50.0kg*(1.2m/s^2/16.0m)
F=4.5 N
Answer:
The electrical force is directly proportional to the charge
Explanation:
The electrical force between two object is directly proportional to the net charge on each object and inversely proportional to the square of the distance between them
According to your formula, because Th>Tc, the density of hot air greater than the density of cold air.<span>Hint: You can rearrange the ideal gas law to get </span>
<span>Reference https://www.physicsforums.com/threads/density-of-hot-air.528991/</span>
