Sample Response: Yes, his graph is correct because it shows that as the average kinetic energy increases, so does the temperatur
1 answer:
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The minimum frequency is
while the maximum frequency is
Using the relationship between frequency f of a wave, wavelength
and the speed of the wave v, we can find what wavelength these frequencies correspond to:
So, the wavelengths of the radio waves of the problem are within the range 188-545 m.
while the maximum frequency is
Using the relationship between frequency f of a wave, wavelength
So, the wavelengths of the radio waves of the problem are within the range 188-545 m.
Answer: 463.83 m/s
Explanation:
The question in english is:
<em>If the circumference of the Earth is 40075 km, At what speed does a person who is on the equator move?</em>
<em></em>
We need to find the tangential speed of a person that is on the Earth's equator (assuming the Earth moves following a uniform circular motion) and we onle have the value of the circumference
of the planet as data.
Since we assumed we are dealing with uniform circular motion, the tangential speed is expressed as:
(1)
Where:
is the angular frequency
is the diameter of the Earth
is the period of revolution of the Earth (1 day)
On the other hand, the circumference of a sphere (assuming the Earth has this shape) is given by the following equation:
(2)
Where in this case.
Clearing :
(3)
(4)
Substituting (4) in (1):
(1)
(5)
Finally:
(6)