Physics energy question (1 Viewer)

Drsoccerball · Aug 16, 2015

A radio station emits radio waves at a frequence of 104.1 MHz. What is the energy, in joules, of each proton being transmitted by the radio station?

InteGrand · Aug 16, 2015

Drsoccerball said:
A radio station emits radio waves at a frequence of 104.1 MHz. What is the energy, in joules, of each proton being transmitted by the radio station?

$$E=hf$, with $f=104.1\text{ MHz}=104.1\times 10^6 \text{ Hz}$ (SI units). (Recall that the prefix M (`mega') refers to $\times 10^6$).$

Drsoccerball · Aug 16, 2015

InteGrand said:
$$E=hf$, with $f=104.1\text{ MHz}=104.1\times 10^6 \text{ Hz}$ (SI units). (Recall that the prefix M (`mega') refers to $\times 10^6$).$

Whats your answer?

Crisium · Aug 16, 2015

6.90x10^-26 J

If you use InteGrand's method subbing in the given value and Planck's Constant

Drsoccerball · Aug 16, 2015

InteGrand said:
$$E=hf$, with $f=104.1\text{ MHz}=104.1\times 10^6 \text{ Hz}$ (SI units). (Recall that the prefix M (`mega') refers to $\times 10^6$).$

-.-.... I was subbing planks constant as 2x10^(-7)

Crisium · Aug 16, 2015

Drsoccerball said:
-.-.... I was subbing planks constant as 2x10^(-7)

LOL

That's the magnetic field constant iirc

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Physics energy question (1 Viewer)

Drsoccerball

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