A car has a mass of 1200 kg. A man can comfortably push down with a force of 400 N. If the small piston in a hydraulic jack has
1 answer:
You might be interested in
Answer:
When electrons are lost, a positively charged ion is formed. When electrons are gained, a negatively charged ion is formed.
Explanation:
Atoms consist of three particles:
- Protons, positively charged, in the nucleus
- Neutrons, no charge, in the nucleus
- Electrons, negatively charged, orbiting around the nucleus
The proton and the electron have same magnitude of charge (), but the proton's charge is positive while the electron's charge is negative.
For a neutral atom, the number of protons is equal to the number of electrons, so the atom is electrically neutral. However, sometimes the atom can lose or gain electrons, becoming electrically charged: this is called ion. In particular:
- If the atom loses one (or more) electrons, it will remain with an excess of positive charge (because the number of protons is now greater than the number of electrons), so it will form a positively charged ion
- if the atom gains one (or more) electrons, it will remain with an excess of negative charge (because the number of protons is now smaller than the number of electrons), so it will form a negatively charged ion
Answer:
Explanation:
A) Initial kinetic energy of proton
B) How close does the proton get to the line of charge?
Potential energy and kinetic energy are related as:
Change in voltage is