# Need help calculating frequency

#### middleearth77

Join Date: Jun 2005
Posts: 1
Read my Journal nd hlp. calculating frequency

--------------------------------------------------------------------------------

I have a problem that states as follows:

Calculate the frequency (in Hz) of energy of 3.5 x 10^-14 joules. (c=3.00 x 10^8 m/s; h=6.63 x 10^-34 joule-seconds)

I need help in setting this problem up. I found the equation E=hv, where E= the increase of energy, h= planck's constant, and v= the freqency of light which increases propportionally with an increase in energy.

I am going crazy and just don't get it...........

Related General Engineering News on Phys.org

#### Ouabache

Homework Helper
you will find some replies to your question at this location

### Physics Forums Values

We Value Quality
• Topics based on mainstream science
• Proper English grammar and spelling
We Value Civility
• Positive and compassionate attitudes
• Patience while debating
We Value Productivity
• Disciplined to remain on-topic
• Recognition of own weaknesses
• Solo and co-op problem solving