A spaceship from a friendly, extragalactic planet flies toward Earth at 0.203 0.203 times the speed of light and shines a powerf
ul laser beam toward Earth to signal its approach. The emitted wavelength of the laser light is 691 nm . 691 nm. Find the light's observed wavelength on Earth.
2 answers:
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Answer:
The lowest possible frequency of sound is 971.4 Hz.
Explanation:
Given that,
Distance between loudspeakers = 2.00 m
Height = 5.50 m
Sound speed = 340 m/s
We need to calculate the distance
Using Pythagorean theorem
We need to calculate the path difference
Using formula of path difference
Put the value into the formula
We need to calculate the lowest possible frequency of sound
Using formula of frequency
Put the value into the formula
Hence, The lowest possible frequency of sound is 971.4 Hz.
