Converting to kg ? simple question

  • Thread starter cragar
  • Start date
In summary, to convert 938.3MeV/(c^2) to kilograms, you need to multiply it by 1.602*10^(-19) joules and then simplify the resulting units.
  • #1
cragar
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Homework Statement


how do i convert 938.3MeV/(c^2) to kilo grams

The Attempt at a Solution



so this is mega electron volts divided by c^2 do i just divide it by 1.602*10^(-19) joules
is e measured in coulombs and a volt is a joule per coulomb.
 
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  • #2
The eV is a measure of energy, equalling somewhere about 1.6 * 10^(-19) J
1 J = 1 kg * m^2/s^2
I assume c wants to be the speed of the light, which is given in m/s

so 1 eV/c^2= (some scalar) * kg * m^2/s^2 / (m/s)^2
now what you get by simplifying?

It always helps not to forget to write the units, and go for base units when in doubt.
 
  • #3
thanks , ok i see , so i multiply it by 1.602*10^(-19)J/1eV to get it Kg .
correct
 

1. How do I convert pounds to kilograms?

To convert pounds to kilograms, simply multiply the number of pounds by 0.4536. For example, if you have 10 pounds, the conversion would be 10 x 0.4536 = 4.536 kilograms.

2. What is the formula for converting from grams to kilograms?

The formula for converting grams to kilograms is to divide the number of grams by 1000. For instance, if you have 500 grams, the conversion would be 500 ÷ 1000 = 0.5 kilograms.

3. Can I convert from ounces to kilograms?

Yes, you can convert from ounces to kilograms. To do so, multiply the number of ounces by 0.02835. For example, if you have 20 ounces, the conversion would be 20 x 0.02835 = 0.567 kilograms.

4. Is converting to kilograms the same as converting to metric units?

Yes, converting to kilograms is a form of converting to metric units. The metric system uses kilograms as its unit of measurement for mass or weight.

5. How do I convert from stone and pounds to kilograms?

To convert from stone and pounds to kilograms, first multiply the number of stone by 6.35, then add the result to the number of pounds multiplied by 0.4536. For example, if you have 2 stone and 5 pounds, the conversion would be (2 x 6.35) + (5 x 0.4536) = 14.91 kilograms.

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