what is the electric force of attraction (in newtons) between a proton and an electron? assume the distance between them is 5*10 negetive11 meter

To find the electric force of attraction between a proton and an electron, we can use the formula for the electric force:

F = (k * Q1 * Q2) / r^2

where F is the electric force, k is the electrostatic constant (8.99 × 10^9 N m^2/C^2), Q1 and Q2 are the charges of the proton and electron respectively, and r is the distance between them.

In this case, the charge of a proton is +1.6 × 10^-19 C and the charge of an electron is -1.6 × 10^-19 C. The distance between them is given as 5 × 10^-11 meters.

Now we can plug these values into the formula:

F = (8.99 × 10^9 N m^2/C^2) * (+1.6 × 10^-19 C) * (-1.6 × 10^-19 C) / (5 × 10^-11 m)^2

Calculating this expression will give us the electric force of attraction between a proton and an electron in newtons.