2 answers:
Wavelenght is the distance between two crests of a wave. The formula for that is
λ = v/f
where λ is the wavelenght, v is the speed and f is the frequency. To slove this, we first convert the frequency to basic units:
60 MHz = 60,000,000 Hz
Then we put the frequency and the speed at the formula:
λ = 3*108/60000000
λ = 0.0000054 m
A frequency of 60 MHz is close to the lower end of the old VHF-TV band.
c = f λ ...... where c is the speed of light, f is the frequency and λ is the wavelength
λ = c / f = 3.00x10^8 m/s / 6.0x10^7 1/s
λ = 5.0 m
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The Answer you are looking for is true
Answer:
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Explanation:
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Molecular Formula
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Hbro dissociate as follows
HBro---> H+ + BrO-
Ka= (H+)(BrO-) / HBro
PH = -log (H+)
therefore (H+) = 10^-4.48= 3.31 x10^-5
ka is therefore= ( 3.31 x 10^-5)^2/0.55=1.99 x10^-9
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