A wave traveling at 230 m/sec has a wavelength of 2.1 meters. What is the frequency of the wave?
2 answers:
Answer:
The frequency of the wave is 109.52 Hz.
Step-by-step explanation:
Given : A wave traveling at 230 m/sec has a wavelength of 2.1 meters.
To find : What is the frequency of the wave?
Solution :
We know that,
We have given,
Velocity of wave is 230 m/s.
Wavelength is 2.1 meters.
Substitute in formula,
Therefore, The frequency of the wave is 109.52 Hz.
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Answer:
ab = 1
Step-by-step explanation:
A Reciprocal of a number is a number which when multiplied by the original number yields the multiplicative number, 1.
So the reciprocal of x would be x⁻¹ or ¹⁄ₓ
The information we are given states that the sum of the two non-zero numbers a and b equals the sum of their reciprocals.
So we can write this into an equation and solve,
(See image)
Once we solve, we get the equation (ab-1)(a+b) = 0
We are given info that a+b≠0
So for the above equation to be true, ab-1 has to equal 0
For <em>this</em> to be true, the product ab must equal 1
