Answer:
Electromagnetic waves are waves that have no medium to travel whereas mechanical waves need a medium for its transmission. Electromagnetic waves travel in a vacuum whereas mechanical waves do not. While an electromagnetic wave is called just a disturbance, a mechanical wave is considered a periodic disturbance.
Explanation:
sorry if wronggggggggggggggggggg
Hi there!
We can use the derived equation to solve:
, where:
h = height
g = acceleration due to gravity
Plug in the given values. Remember to CONVERT km to m:
32 km = 32 km * 1000 m / 1 km = 32,000 m
t = √(2(32000)/3.4) ≈ <em>137.199 sec</em>
Part 2:
Use the derived equation:
vf = √2gh
vf = √(32000)(3.4) = <em>329.848 m/s</em>
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People are going to tell you about heating or cooling the gas, but
there's only one way to change the volume of a gas: Put it into a
different container !
A gas always expands to fill whatever you keep it in ... doesn't matter
how warm or cold it is. So the only way to make it change its volume
is to put it into a larger or smaller jar.