118 elements
from what knowledge i have gathered in my human brain i hope that this is helpful
Density of liquid is 1 g/mL.
<h3>What is density of a substance?</h3>
Density is the ratio of the mass and the volume of a substance
Mathematically density of a substance is given as follows:
The density of the substance is:
mass of liquid = 172 - 137 = 35 g
volume of liquid = 35 mL
Density of liquid = 35 g/35 mL
Density of liquid = 1 g/mL
In conclusion, density is obtained as a ratio of mass and volume.
Learn more about density at: brainly.com/question/1354972
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The answer is potential for this question
The total work done of 0.018 joules is needed to move the charges apart and double the distance between them.
We have two electric charges q(A) = 1μc and q(B) = -2μc kept at a distance 0.5 meter apart.
We have to calculate much work is needed to move the charges apart and double the distance between them.
<h3>What s the formula to calculate the Potential Energy of a system of two charges (say 'q' and 'Q') separated by a distance 'r' ?</h3>
The potential energy of the system of two charges separated by a distance is given by -

In order to solve this question, it is important to remember the work - energy theorem which states -
"The change in the energy of the body is equal to work done on it"
Hence, using this work -energy theorem in the question given to us we get -

In our case -

W = 0.018 joules
Hence, the total work done should be 0.018 joules.
To solve more question on potential energy, visit the link below -
brainly.com/question/15014856
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Answer:
A fan pushes hot air out of a vent and into a room. The hot air displaces cold air in the room, causing the cold air to move closer to the floor.
The hot air displacing the cold air is an example of transfer by
Explanation: