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2 years ago

7

The frequency of the middle d note on a piano is 293.66 hz. what is the wavelength of this note in centimeters? the speed of sou

nd in air is 343.06 m/s.

1 answer:

Natali5045456 [20]2 years ago

4 0

Wavelength = speed of sound / frequency

= (343.06 m/s) / (261.63 Hz)

= 1.31 m (or 131 cm)

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Answer: The reactions are controlled to regulate energy output

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A small rock is launched straight upward from the surface of a planet with no atmosphere. The initial speed of the rock is twice

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If gravitational effects from other objects are negligible, the speed of the rock at a very great distance from the planet will approach a value of $\sqrt{3} v_{e}$

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Now, adding potential and kinetic energies of initial and final and equating as below, find the final velocity as

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