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Mazyrski [523]
4 years ago
14

Radio waves travel at a speed of 300,000,000 m/s. WFNX broadcasts radio waves at a

Physics
1 answer:
yKpoI14uk [10]4 years ago
3 0

Answer:

Wavelength, \lambda=2.94\ m

Explanation:

It is given that,

Speed of radio waves is v=3\times 10^8\ m/s

Frequency of radio waves is f = 101,700,000 Hz

We need to find the wavelength of WFNX’s radio waves. The relation between wavelength, frequency and speed of a wave is given by :

v=f\lambda

\lambda is wavelength

\lambda=\dfrac{v}{f}\\\\\lambda=\dfrac{3\times 10^8}{101,700,000}\\\\\lambda=2.94\ m

So, the wavelength of WFNX’s radio waves is 2.94 m.

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Answer:

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Explanation:

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length of skid = 93 m          

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we know,              

v² = u² + 2 a s                        

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u = 25 m/s (two significant figure)

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4 years ago
Assuming the bar has no weight where does the fulcrum (the top point of the tringle) need to be positioned for the two sides to
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Fulcrum need to be positioned balanced with weight on both the sides following law of lever.

What is the physical law of the lever?

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  • The lever is balanced, in other words, when the sum of the moments about the fulcrum is zero.
  • The situation in which the positive moments (those attempting to turn the lever clockwise) equal the negative moments is known as this (those that try to rotate it counterclockwise).
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Learn more about the Fulcrum with the help of the given link:

brainly.com/question/16422662

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