Answer:
Explanation:
The relation between frequency and wavelength is shown below as:
c is the speed of light having value 
Given, Wavelength = 1040 nm
Also, 1 m = 
nm
So,
Wavelength = 
m
Thus, Frequency is:
Answer:
The correct answer is A.
Explanation:
Electrical potential energy is a type of potential energy that results from the Coulomb force and is associated with point loads in a defined system.
For a point charge in the presence of an electric field E produced by another point charge Q, electrostatic potential energy is defined as the negative of the work done by the electrostatic force to carry the charge from position A to position B: mathematically this is a line integral.
The electric field is conservative, and, for a point charge, it is radial, so the work is independent of the trajectory.
Have a nice day!
Answer:
(C) CH_2
Explanation:
An electrophile is an atom that loves electron. For an atom to be able to pull electrons closer to itself, it must be electron deficient and with a partial positive charge.
From the structure give, N is a highly electronegative atom and it is a nucleophile. This implies it loves the nucleus which is positively charged.
The Carbon atom attached to it is an electrophile because it has a lower electronegativity thereby leaving a partial positive charge on it. Therefore, the carbon will be attracted to the nucleophile.
Mass cannot be created nor destroyed as well.
So, energy just goes into other things.
Example: you are born. You have carbon dioxide in your body, (or star dust). When you die, your body releases that gas.
Make sense?
I hope this helps! (:
