# Physics energy question (1 Viewer)

#### Drsoccerball

##### Well-Known Member
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

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

#### Drsoccerball

##### Well-Known Member
$\bg_white E=hf, with f=104.1\text{ MHz}=104.1\times 10^6 \text{ Hz} (SI units). (Recall that the prefix M (mega') refers to \times 10^6).$
Whats your answer?

#### Crisium

##### Pew Pew
6.90x10^-26 J

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

#### Drsoccerball

##### Well-Known Member
$\bg_white E=hf, with f=104.1\text{ MHz}=104.1\times 10^6 \text{ Hz} (SI units). (Recall that the prefix M (`mega') refers to \times 10^6).$
-.-.... I was subbing planks constant as 2x10^(-7)

#### Crisium

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

That's the magnetic field constant iirc