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olganol [36]
2 years ago
13

Models are particularly useful in relativity and quantum mechanics, where conditions are outside those normally encountered by h

umans. What is a model?
Physics
1 answer:
mylen [45]2 years ago
4 0

Answer:

A model is defined as a structure used to represent an object, usually of a different scale.

Explanation:

In quantum mechanics and particle physics, many of the particles are subatomic, meaning that they are smaller than atoms. This is where a model would be useful. A model could help people to visualise what the particle looks like, and in general would make it easier to understand the behaviour of such a particle.

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Each line (unit) on the horizontal axis represents: 5 years 10 years 20 years all of the above
zlopas [31]
The correct answer is 10 years
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2 years ago
A cork has weight mg and density 25% of water’s density. A string is tied around the cork and attached to the bottom of a water-
yuradex [85]

Answer:

Explanation:

Given

Density of Cork \rho _c=0.25\rho _{water}

Considering V be the volume of Cork

Buoyant Force will be acting Upward and Weight is acting Downward along with T

Since density of water is more than cork therefore Cork will try to escape out of water but due to tension it will not

we can write as

\rho _{water}Vg-\rho _Cvg-T=0

where T=tension

Thus Tension T is

T=Vg(\rho _{water}-\rho _c)

Taking \rho _c common

T=\rho _cVg(\frac{\rho _{water}}{\rho _c}-1)    

T=mg(\frac{\rho _{water}}{\rho _c}-1)

T=mg(4-1)

T=3mg

4 0
3 years ago
When not in a vacuum, what force causes objects in freefall to fall at different speeds??
Deffense [45]
Hi,

My best answer would be Gravity. Is it a multiple choice question? Or is it an essay question. 
4 0
3 years ago
An energy transformation in sullivanian theory can best be described as
Luda [366]
An action or behavior
3 0
2 years ago
Hydrogen bonding is a weak attractive force.<br> O A. True<br> O B. False
lana66690 [7]

Answer:

The Answer is gonna be True

Explanation : A hydrogen bond is a weak type of force that forms a special type of dipole-dipole intermolecular attraction when a hydrogen atom is bonded directly to one of the most electronegative elements like nitrogen (N), oxygen (O) or fluorine (F). This causes the hydrogen to acquire a significant amount of positive charge.

Or

Hydrogen bond is an attractive force between a partially positive charged hydrogen and a partially negative charged atom (oxygen and nitrogen). This is a very weak bond and strength of hydrogen bond (5-10 Kcal per bond) is much less than the strength of covalent bond. Hydrogen bonds are usually showed as dotted lines between two atoms.

This is the Answer for your question :3

I hope you are having a great day ❤️❤️❤️❤️❤️

7 0
2 years ago
Read 2 more answers
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