Answer: Addition polymerization & Condensation polymerization
Answer:
The magnitude of the electric field is 5.75 N/C towards positive x- axis.
Explanation:
Given that,
Point charge at origin = 2 nC
Second charge = 5 nC
Distance at x axis = 8 m
We need to calculate the electric field at the point x = 2 m
Using formula of electric field
![E=\dfrac{1}{4\pi\epsilon_{0}}(\dfrac{q_{1}}{r_{1}^2}+\dfrac{q_{2}}{r_{2}^2})](https://tex.z-dn.net/?f=E%3D%5Cdfrac%7B1%7D%7B4%5Cpi%5Cepsilon_%7B0%7D%7D%28%5Cdfrac%7Bq_%7B1%7D%7D%7Br_%7B1%7D%5E2%7D%2B%5Cdfrac%7Bq_%7B2%7D%7D%7Br_%7B2%7D%5E2%7D%29)
Put the value into the formula
![E=9\times10^{9}\times(\dfrac{2\times10^{-9}}{2^2}+\dfrac{5\times10^{-9}}{(8-2)^2})](https://tex.z-dn.net/?f=E%3D9%5Ctimes10%5E%7B9%7D%5Ctimes%28%5Cdfrac%7B2%5Ctimes10%5E%7B-9%7D%7D%7B2%5E2%7D%2B%5Cdfrac%7B5%5Ctimes10%5E%7B-9%7D%7D%7B%288-2%29%5E2%7D%29)
![E=5.75\ N/C](https://tex.z-dn.net/?f=E%3D5.75%5C%20N%2FC)
The direction is toward positive x- axis.
Hence, The magnitude of the electric field is 5.75 N/C towards positive x- axis.
Answer:
Many types of scientific equipment are used to perform different functions in the science lab. Which of the following combinations of equipment would be needed to bring one liter of water to 85°C? a. ... Various pieces of safety equipment are used in the lab to provide protection against injury.
Explanation:
Here are the answers to the question. Make sure to give a valid reason, please.
A. the sum of the protons and neutrons in one atom of the element.
B. a ratio based on the mass of a carbon-12 atom.
C. a weighted average of the masses of an element's isotopes.
D. twice the number of protons in one atom of the element.