<u>Significance</u><u> </u><u>of</u><u> </u><u>dams</u><u> </u><u>and</u><u> </u><u>canals</u><u> </u><u>are</u><u> </u><u>:</u><u>-</u><u> </u>
- Water is stored in dams that are built across rivers. The water is then supplied to nearby towns and cities through pipelines
- Water for agricultural purposes is supplied through a system of irrigation canals
<em>hope</em><em> </em><em>it</em><em> </em><em>helps</em><em> </em><em>~</em>
The charge of proton and electron is equal in magnitude that is
. The distance between electron and proton is
or
.
Force exerted on electron by proton is calculated as follows:

Here, k is Coulomb's constant,
is charge on proton,
charge on electron and r is distance between them.
Putting the values,

Now, according to second law of Newton,

Here,
is mass of electron and a is acceleration.
Also, 
Rearranging,

Thus, the acceleration of an electron in this atom is
.