calculate the potential difference between points x and y​

Explanation:

Divergent is your answer.

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Answer:

Hope this can help u

Explanation:

A lactometer is a specialized hydrometer used measure the relative density and purity of milk. ... If the milk is pure the readings will be close to 1 and if the amount of water in the milk increases then the markings will be close to 3.

Answer:

[tex]difference \: in \: weight = 150n - 100n = 50n[/tex]

Now,buyantant force

[tex]difference \: in \: weight \: = volume(body) \times density \: of \: water \: \times g[/tex]

so;

[tex]50 = {v}^{b} \times 1 \times {10}^{3} \times 9.8m {s}^{2}[/tex]

[tex] {v}^{b} = \frac{50}{1000 } \times 9.8[/tex]

[tex] = \frac{50}{9800} [/tex]

[tex] = 0.0051[/tex]

Now,

[tex]mass \: in \: air \: = 150n = \frac{150}{9.8kg} [/tex]

[tex]density = \frac{weght}{volume} [/tex]

[tex] = \frac{150}{0.0051} \times 9.8 \\ x = 3000[/tex]

And now,

[tex]specific \: density \: = \frac{density of \: the \: body}{density \: of \: water} [/tex]

[tex] = \frac{3000}{1000} [/tex]

[tex] = 3[/tex]

Hence that,specific density of a given body is 3

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Answer:

The bonds can shift because valence electrons are held loosely and move freely.

Explanation:

The metallic bonds are responsible for many properties of metals, such as conductivity, the reason is, the bonds can shift because valence electrons are held loosely and move freely.

Metallic bond is the force that binds two metallic substances together.

The valence electron in this type of bond are always in constant motion, causing the electron to move from one neighboring atom to another.

This free electron character of the valence electron of the metallic bond is responsible for the high electrical conductivity of metals.

The valence electrons are always free to move when an electrical field is applied in the metal.

Thus, the metallic bonds are responsible for many properties of metals, such as conductivity, the reason is, the bonds can shift because valence electrons are held loosely and move freely.

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Answer:

A total eclipse occurs when the dark silhouette of the Moon completely obscures the intensely bright light of the Sun, allowing the much fainter solar aureole to be visible. During any one eclipse, totality occurs at best only in a narrow track on the surface of Earth. This narrow track is called the path of totality.

A partial lunar eclipse happens when part of the Moon enters Earth's shadow. In a partial eclipse, Earth's shadow appears very dark on the side of the Moon facing Earth.

Answer: m/s north

explanation

We know

[tex]\boxed{\sf n_{21}=\dfrac{C}{V}}[/tex]

How he find:-

The owner will measure speed of light through the index(Diamond or rutile).Then using calculations he fill find which is the velocity of diamond or rutile

[tex]\\ \sf\longmapsto n_D=\dfrac{C}{V_D}[/tex]

[tex]\\ \sf\longmapsto 2.4=\dfrac{3\times 10^8ms^{-1}}{V_D}[/tex]

[tex]\\ \sf\longmapsto V_D=\dfrac{3\times 10^8ms^{-1}}{2.4}[/tex]

[tex]\\ \sf\longmapsto V_D=1.25\times 10^8ms^{-1}[/tex]

[tex]\\ \sf\longmapsto V_D=125\times 10^6ms^{-1}[/tex]

[tex]\\ \sf\longmapsto n_R=\dfrac{C}{V_R}[/tex]

[tex]\\ \sf\longmapsto V_R=\dfrac{C}{n_R}[/tex]

[tex]\\ \sf\longmapsto V_R=\dfrac{3\times 10^8ms^{-1}}{2.9}[/tex]

[tex]\\ \sf\longmapsto V_R=1.03\times 10^8[/tex]

[tex]\\ \sf\longmapsto V_R=103\times 10^6ms^{-1}[/tex]

When an electromagnetic wave (like light) travels in a given medium, the speed of the wave in the medium depends on the refractive index of the material.

Such that if the refractive index is n₀, the speed of the wave in that material will be:

v = c/n₀

where c is the speed of light in vacuum.

c = 3×10^8 m/s

Now, we know that:

the refractive index of diamond is 2.4

the refractive index of rutile is 2.9

And the owner can measure (in some way) the speed of light through each material.

Looking at the equation of the speed of the wave in a material, we can see that as the index of refraction increases, the velocity should decrease.

Then when the light travels in the rutile (which has a larger index) it will have a smaller velocity than in diamond.

Where the speed in rutile is:

[tex]V_r = \frac{3\cdot 10^8 m/s}{2.9} = 103,448,275.1 m/s[/tex]

And in diamond is:

[tex]V_r = \frac{3\cdot 10^8 m/s}{2.4} = 125,000,000 m/s[/tex]

So measuring the speeds in each cristal, she can know which one is diamond and which one is rutile.

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Answer:

To change 150x106 km to scientific notation, the leading number must be reduced to a  

number between 1 and 9.99999.... To do this, one must dDIVIDE by 100, yielding 1.50.  

In order to keep the entire quantity the same, one must then MULTIPLY the exponential  

part of the number of 100. This is equivalent to increasing the exponent from 6 to 8.

Explanation:

hope this helps

Fun Fact: A cow-bison hybrid is called a “beefalo”

Explanation:

Component Function

Closed switch

Electrical wire

Resistor A component that opposes or inhibits electrical current in a circuit. It can also convert electrical energy to heat or light.

Variable resistor A resistor whose resistance can be adjusted higher or lower.

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Answer:

Three

Explanation:

Group 5A elements like phosphorus form 3 covalent bonds.

Answer: 3

Explanation:

Answer:

I can help for 2. and 3.

2. 12 m

3. 6 seconds

Explanation:

From my understanding of the first question you would draw a graph that would start at 0 and pass through 3,6 6,12 9,12 12,12 then the the line would go down 15,8 18,4 21,0. I cant see problem 4 hope this helps.

Answer:

sure

Explanation:

what/where is the work

Answer:

The term “INTERmolecular forces” is used to describe the forces of attraction. BETWEEN atoms, molecules, and ions when they are placed close to each other. •

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Answer: are the forces which mediate interaction between molecules, including forces of attraction or repulsion which act between atoms and other types of neighboring particles, e.g. atoms or ions.

Explanation:

Density of the metal is 8.9g/cm^3

Density:-

[tex]\boxed{\sf Density=\dfrac{Mass}{Volume}}[/tex]

SI unit:-

SI unit of density is kg/m^3

CGS unit of density is g/cm^3

Answer:

The answer is 169.0.

Explanation:

For addition and subtraction problems with significant figures, the answer should be rounded to the same number of decimal places as the measurement with the least number of decimal places.

Rules for Significant Figures:

Answer:

ab 60

Explanation:

Answer:

1. heating

2. entertainment

3. cooling

4.educational purpose

5.comfort

Answer:

14.1m/s

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Have a great day

Answer:

P=160000Pa

Explanation:

You haven't specified what to calculate

But looking at the parameters I think the question is asking to calculate the pressure exerted.

Pressure=Force/Area

P=40000/0.25m²

P=160000Pa

Elements in the periodic table are arranged in the increasing order of their atomic number.

An atom will contain equal amount of protons and electrons. If two elements are in same period of periodic table then these elements will have same number of electrons.

Helium is one of the seven elements which are called as noble gases. This gas is odorless, tasteless and colorless which makes it unique from other elements.

It has two valence electrons while atoms of other elements in the group have 8 valence electrons.

Lithium has one valence electron, while calcium atom has 2 valence electrons.

The highest level of energy is due valence electrons of an atom.  The correct answer is Lithium.

Fluorine element has 9 electrons. There are 2 electrons in the first energy level and seven electrons in the second energy level.

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Answer:

40m

Explanation:

Your total displacement would be 40m! Let me explain.

Going 30m north adds 30 to 0... so your total right now is 30m.

if you turn around and walk 10 m you have to add that 10 to the 30.

so your total displacement is 40m.

Explanation:

Answer:

Heat is the flow of energy from a high temperature to a low temperature. when these temperature balance out, heat stops flowing, then the system (or set of system) is said to be in thermal equilibrium.

Answer: Potassium and Iodine

Explanation:

I took the quick check and it’s right.

a) An inflated balloon was pressed against a wall after it has been rubbed with a piece of synthetic cloth. It was found that the balloon sticks to the wall. This is because a positive and negative electric charge is produced, therefore the balloon sticks to the wall.

b) When an object is thrown up, it comes back to ground because of gravitational attraction force of earth.

c) Mountaineers suffer nose bleeding at higher altitudes because the oxygen level decreases with increase in altitude, which the body cannot adjust.

d) Foundations of high rise buildings are kept wide because more is the area of contact, less is the pressure efforts. So, foundations are wide so as to decrease the possibility of the building from falling down.

e) Deep sea divers or high altitude fliers wear special suits so as prevent their body from being crushed by the water pressure. Since water pressure is maximum at deep seas and oceans, therefore, more is the risk of being injured.

f) Walls of a dam are thickened near the base so that the dam can handle the kinetic energy pressure and prevent itself from breaking down, which if not, can lead to flooding.

HOPE IT HELPS...

Hi :)

The formula for velocity is

v = displacement / change in time

velocity = 100 m / 4 seconds

velocity = 25 m/s

The formula for velocity is

v = displacement / change in time

velocity = 100 m / 4 seconds

velocity = 25 m/s

Answer: Quantitative

Explanation: because quantitative is numbers