I keep seeing 7.620497955 as the electrical force between a proton and electron but when I multiply (8.99 x 10^9)(1.602 x 10^-19)-(1.602 x 10^-19)/(10^-10)2 I get a diffrent answer. Am I multiplying the wrong numbers?

What do you mean you "see"the force as ...?

By "see" I meant that I had checked my answer on the internet to see if I was correct in thinking that multipying the charge of an electron, charge of a proton, and k would yield the electrical force between an electron and proton. My answer was 23.10 x 10^-9 which seemed quite different than other answers I saw posted. Either my math was wrong or the numbers I have been using are wrong. I used -1.602 x 10^-19, 1.602 x 10^-19, and the k constant 9 x 10^9. Thanks!

To calculate the electrical force between a proton and an electron, you can use Coulomb's Law, which states that the magnitude of the electrical force between two charged objects is directly proportional to the product of their charges and inversely proportional to the square of the distance between them.

Here's how you can calculate it step by step:

1. Identify the known values:
- The electrical constant, k, is 8.99 x 10^9 N m^2/C^2.
- The charge of a proton, q1, is 1.602 x 10^-19 C.
- The charge of an electron, q2, is -1.602 x 10^-19 C.
- The distance between the proton and the electron, r, is 10^-10 m.

2. Apply the formula:
The electrical force, F, is calculated using the equation:
F = (k * q1 * q2) / r^2

3. Substitute the values:
F = (8.99 x 10^9 N m^2/C^2) * (1.602 x 10^-19 C) * (-1.602 x 10^-19 C) / (10^-10 m)^2

4. Simplify:
F = (8.99 x 10^9 N m^2/C^2) * (1.602 x 10^-19 C) * (-1.602 x 10^-19 C) / (10^-10 m)^2
F = -0.0240763 N

Therefore, the electrical force between a proton and an electron is approximately -0.0240763 N (negative because it is an attractive force).

It seems that you have multiplied the numbers correctly, but the value you obtained is slightly different from the commonly quoted value of 7.620497955 N. However, keep in mind that the commonly quoted value might be rounded or based on slightly different experimental data. So, if your calculation is accurate, it could be a slight deviation due to rounding or different sources of values used.