# physics

Calculate the electrical attraction that a proton in a nucleus exerts on an orbiting electron if the two particles are 1.13×10^-10 m apart.

1. 👍 0
2. 👎 0
3. 👁 48
1. Use Coulomb's Law:

!@#\$%^&*Q1*Q2 / r^2

k = 9.00x10^9 N.m^2/C^2 (Coulomb's constant)
Q1 = Q2 = 1.60x10^-19C (Elementary charge)
r = given in the question (distance)

Note: The charge of a proton is equal to the charge of an electron except for the algebraic sign.

1. 👍 0
2. 👎 0
posted by GK
2. I tried that and got 1.8x10^8 but it wasn't the right answer

1. 👍 0
2. 👎 0
posted by erin
3. You didn't do it right. Just doing the orders of magnitude only..

F=E9*E-19*E-19/E-20 ( I squared the distance)
F=E(9-38+20) appx 10^-9 Newtons.

1. 👍 0
2. 👎 0
4. what does E mean? Could you explain it another way because I'm confused.

1. 👍 0
2. 👎 0
posted by Erin
5. >.< ?

1. 👍 0
2. 👎 0
posted by coco

## Similar Questions

1. ### Physics

Could someone help me on how to put this all together. Atomic physicists ignore the effect of gravity within an atom. To see why, calculate and compare the gravitational and electrical forces between an electron and a proton

asked by Olivia on October 18, 2007
2. ### Physics Questions

Can you please help me with some and check my answers? Thanxs! 3.Which is stronger, the electrical force between an electron and a proton or the gravitational force between these particles? -I got that the electrical force between

asked by Soly on October 14, 2007
3. ### chem

why is H+ a proton h+ would be a proton because it has a positive electric charge,just as all protons have to be positive. im just beginning to stdy this so take my answer and search it before you write anything down, but im

asked by anona on May 30, 2007
4. ### SCIENCE - Pls HELP

A proton (with a mass, mp = 1.673 x 10^-27 kg & electrical charge, e = 1.602 x 10^-19) and an electron (with a mass, me = 9.109 x 10^-31 kg & electric charge -e = -1.602 x 10^-19) are not moving & at a distance of 1.000 x 10^-10 m

asked by OLIVIA on February 7, 2007
5. ### Physics

A hydrogen atom consists of a positively charged proton (nucleus) and a negatively charged electron. The following is correct due to Coulomb's law: a.The two particles repel each other b.The electron accelerates toward the proton

asked by Sammy on February 5, 2010
6. ### physics

1)A hypothetical neutral atom has 77 electrons. One of its electrons is held in circular orbit of radius r = 0.244 nm by electrostatic attraction between the electron and the nucleus. Assume: the interaction between electrons is

asked by physicshand on August 31, 2015
7. ### physics

The nucleus of a hydrogen atom is a single proton, which has a radius of about 1.0 10-15 m. The single electron in a hydrogen atom normally orbits the nucleus at a distance of 5.3 10-11 m. What is the ratio of the density of the

asked by MIke on December 1, 2006
8. ### Physics

A hydrogen atom is at the earth's surface. The electron and proton in the atom are separated by a distance of 5.29x10^-11m. What is the ratio of the magnitude of the electrical force exerted by the proton on the electron to the

asked by jr on June 26, 2014
9. ### Physics

Lithium is the atom which has three protons in its nucleus and three electrons circling the nucleus.(it usuallly has 3 nuetrons as well,but they r not important in this problem.)Two of the electrons circle the nucleus at a

asked by jenish on February 7, 2008
10. ### Physics

The hydrogen atom contains a proton, mass 1.67 10-27 kg, and an electron, mass 9.11 10-31 kg. The average distance between them is 5.3 10-11 m. The charge of the proton is the same size, opposite sign of the electron. a)What is

asked by Susan on January 13, 2008

More Similar Questions