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just olya [345]
3 years ago
15

Bose-Einstein Condensate can be defined by Group of answer choices slowly vibrating molecules all possibilities listed are corre

ct. absolute zero no molecular movement
Physics
1 answer:
deff fn [24]3 years ago
4 0

Answer:

The correct option is;

Absolute zero

Explanation:

A Bose-Einstein condensate is known as the fifth state of matter which is made of a collection of ultra cooled atoms (at almost absolute zero degrees -273.15 °C) such that the there is very slight free energy within the atoms which results in almost no relative motion between the atoms. The atoms then combine forming clumps such that phenomena usually observed at the microscopic level such as wavefunction interference become observable at the microscopic level.

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Kundan who weighs 200N and bijaya who weighs 500N are playing sea saw.If Bijaya is 1m away from the fulcrum,how far should kunda
Tom [10]

Answer:

Kundan should sit at more that 2.5 meters from the location of the fulcrum on the side opposite to the side where Bijaya sits

Explanation:

The given parameters are;

The weight of Kundan, F₁ = 200 N

The weight of Bijaya, F₂ = 500 N

The distance of Bijaya from the fulcrum, d₂ = 1 m

Therefore, for Kundan to lift Bijaya, Kundan should sit at a location further than the point where both the moment of Bijaya and Kundan about the fulcrum are equal

Moment of a force, M = The magnitude of the force, F × The perpendicular distance to the point at which the force acts, d

At equilibrium, the sum of the clockwise moment = The sum of the anticlockwise moment

Taking the moment of Kundan as being in the anticlockwise direction and the moment of Bijaya as acting in the clockwise direction, we have;

F₁ × d₁ = F₂ × d₂

∴ 200 N × d₁ = 500 N × 1 m

d₁ = 500 N·m/(200 N) = 2.5 m

Therefore, when Kundan sits at the point d₁ = 2.5 m, away from the fulcrum on one side of the sea saw and Bijaya sits at the point 1 m from the fulcrum on the other side of the sea saw, both Kundan and Bijaya will have the same moment

For Kundan to lift Bijaya, therefore, Kundan as to sit at a point further than 2.5 m from the fulcrum on the opposite side of the fulcrum from Bijaya.

8 0
3 years ago
Of all the parts of an atom, which part is the most important in terms of Electricity,Chemistry, and life In general?
Snezhnost [94]
Neutrons number one
3 0
3 years ago
Find the elongation produced in a copper wire of length 2m and radius 5mm, when suspended by a block
igomit [66]

Answer:

0.104 m

Explanation:

Stress, \sigma=\frac {F}{A}

Where F is force and A is area. Also, F=mg where m is mass and g is acceleration due to gravity

Area= \pi r^{2}

Strain=\frac {\triangle l}{l} where \triangle l is the elongation and l is the original length

E=\frac {stress}{strain}=\frac {\frac {F}{A}}{\frac {\triangle l}{l}}=\frac {Fl}{A\triangle l}

Making \triangle l the subject then

\triangle l=\frac {Fl}{AE}=\frac{mg l}{\pi r^{2} E}

By substituting the given values and taking g as 9.81 then

\triangle l=\frac {Fl}{AE}=\frac{500\times 9.81\times 2 m}{\pi \times 0.005^{2}\times 1.2\times 10^{9}}=0.104087333  m\approx 0.104 m

3 0
3 years ago
Which compound uses the oxidation numbers to write the chemical formula?
pantera1 [17]

Inorganic chemical compounds

Explanation:

Inorganic chemical compounds employ the use of oxidation numbers of atoms to write their chemical formula.

  • The oxidation number is the formal charge assigned assigned to an atom present in a molecule or formula unit or ion based on some rules.
  • Knowledge of this number is used in writing the formulae of inorganic compounds.
  • These compounds forms by the exchange of certain small whole numbers by atoms or groups of atoms.
  • The combining power usually correspond to the number of electrons usually lost or gained or shared by atoms of elements during chemical combinations or the number of positive or negative charges carried by ions.

For example:

                                                            A                            B

combining power(Valency):               X                            Y

Exchange of valencies                       Y                            X

                 Molecular formula of compound    A_{y}Bₓ  

Learn more:

Compounds brainly.com/question/5961886

#learnwithbrainly

5 0
3 years ago
5. You head downstream on a river in an outboard.
Bezzdna [24]

Answer:

hope this helps you're welcome

6 0
3 years ago
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