Answer:
, repulsive
Explanation:
The magnitude of the electric force between two charged particles is given by Coulomb's law:
where:
is the Coulomb's constant
are the two charges of the two particles
r is the separation between the two charges
The force is:
- repulsive if the two charges have same sign
- Attractive if the two charges have opposite signs
In this problem, we have two electrons, so:
is the magnitude of the two electrons
is their separation
Substituting into the formula, we find the electric force between them:
![F=(8.99\cdot 10^9)\frac{(1.6\cdot 10^{-19})^2}{(1.5\cdot 10^{-10})^2}=1.02\cdot 10^{-8} N](https://tex.z-dn.net/?f=F%3D%288.99%5Ccdot%2010%5E9%29%5Cfrac%7B%281.6%5Ccdot%2010%5E%7B-19%7D%29%5E2%7D%7B%281.5%5Ccdot%2010%5E%7B-10%7D%29%5E2%7D%3D1.02%5Ccdot%2010%5E%7B-8%7D%20N)
And the force is repulsive, since the two electrons have same sign charge.
Answer:
C and F
Explanation:
A break in one wire causes all current to stop.
If one bulb goes out, the others go out.
Answer:
A.reduce by 4.
Explanation:
In Chemistry, an alpha particle which is typically a helium nucleus has an atomic mass (number of nucleons) of four (4). Therefore, the ejection of an alpha particle by any chemical element simply means that, the mass number of that particular chemical element would be reduced by four (4).
Basically, this process is referred to as an alpha decay and can be defined as a radioactive disintegration of a chemical element that causes it to emit an alpha particle and as a result reducing its mass number by four (4).
Hence, when an element ejects an alpha particle, the mass number of that element reduces by 4.
Answer:
Just go broom broom on ya teacher
Explanation:
cause why not
Answer:
B. The bonds between the oxygen and hydrogen atoms
Explanation:
The bonds that formed in this reaction is one between the oxygen and hydrogen atoms.
This bond is called a covalent bond.
- It develops by sharing of valence electrons between the two species.
- The oxygen and hydrogen attains their own stability this way.
- There is no bond between any wo hydrogen atoms in the diagram.
- An oxygen atom combines with two hydrogen atoms.