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ong>Given :

• Mass (m) = 5 kg
• ACCELERATION (a) = 5 m/s²

To FIND :

• Rate of change of momentum

Note :-

We also called rate of change of momentum is Force.

It MEANS that we have to find Force

So,

→ Force = Mass × Acceleration

Or,

→ F = ma

→ F = 5 ×5

→ F = 25 N

So,the rate of change of momentum is 25.

_____________________________

Newton's second law of MOTION :-

The rate of change of momentum is directly proportional to the APPLIED force, and takes place in the direction in which the force acts.

• SI unit of Acceleration is m/s²

• SI unit of Force is Newton

• SI unit of Mass is Kilogram (Kg)

ong>EXPLANATION:

The GRAVITY of Earth, denoted by g, is the net ACCELERATION that is imparted to objects due to the combined effect of gravitation and the CENTRIFUGAL force. In SI units this acceleration is measured in METRES per second squared or equivalently in newtons per kilogram.

ong>ANSWER:

We know that F = Gm1m2/r2

F = 6.67*10^-11 * 60*70/18*18

F = 6.67*10^-11* 12.96

F = 86.44*10^-11 Newton

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ong>Answer:

Define work give its scientific concept and mention the S.I unit of work ?

Formula:-

Work = Force \TIMES DISPLACEMENT (POSITIVE work)

Definition:-

Whenever work is DONE, energy is transferred. For work, in the scientific sense, to be done, a force must be exerted and there must be displacement in the direction of the force applied.

S.I unit:-

S.I Unit of Work is Joule (J)

Reactants, PRODUCTS, and Bond energy

• The process uses OXYGEN and glucose and RESULTS in carbon dioxide (CO2), water (H2O), and usable energy.

Oxygen and glucose are the reactants.

• Reactants are the substances changed during a chemical REACTION. Carbon dioxide and water are the products.

ong>Answer:

The standard, or near-average, atmospheric pressure at sea level on the Earth is 1013.25 millibars, or about 14.7 POUNDS per SQUARE inch.

The gauge pressure in my automobile tires is a little more than TWICE that value. If you live at a higher altitude, the pressure will be lower since there is LESS air above weighing down upon you. The pressure also varies by relatively small amounts as high and low pressure systems move past.

Explanation:

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31.12

Explanation:

4 FIGURE ARA SIGNIFICANT

er:

Velocity is a physical vector quantity; both magnitude and direction are needed to define it. The scalar absolute value (magnitude) of velocity is called speed, being a COHERENT derived unit WHOSE quantity is measured in the SI (metric system) as METRES PER SECOND (m/s) or as the SI base unit of (m⋅s−1).

In SI base units: m/s

Other units: mph, ft/s

Dimension: L T−1

ong>Answer:

reaction of sodium & water - Sodium metal REACTS rapidly with water to form a colourless solution of sodium hydroxide (NaOH) and hydrogen gas (H2). The resulting solution is basic because of the dissolved hydroxide. The reaction is exothermic. During the reaction, the sodium metal may well become so hot that it catches fire and burns with a characteristic orange colour. The reaction is slower than that of potassium (IMMEDIATELY below sodium in the water)

balanced chemical reaction 2Na(s) + 2H2O → 2NaOH(aq) + H2(g)

& - Calcium is a silvery white metal. The surface of calcium metal is covered with a thin layer of oxide that helps protect the metal from attack by air, but to a lesser extent than the corresponding layer in magnesium. Once ignited, calcium metal burns in air to give a mixture of white calcium oxide, CaO, and calcium NITRIDE, Ca3N2. Calcium oxide is more normally made by heating calcium carbonate. Calcium, immediately below magnesium in the periodic table is more reactive with air than magnesium.

2Ca(s) + O2(g) → 2CaO(s)

3Ca(s) + N2(g) → Ca3N2()

, , , . , . . - .

: 2 + 32 → 32 +23

ong>Explanation:

A sharp knife CUTS OBJECTS easily because due to its very thin edge, the force of our HAND falls on a very SMALL area of the object producing large pressure.

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M0L0T-2

Explanation:

rad is not having no dimension...

SEC is having dimension of TIME.. T-2

MoLoT-1

okkkkkkkkkkkkkj

Explanation:

OKKKKK

ong>Answer:

Here's your answer

EXPLANATION:

MAIN characteristics of the Parliamentary FORM of the government are:

The Parliament is supreme in a parliamentary form of government. While the President or the monarch (e.g. Britain) is the head of the state, the Prime Minister is the real head of the government.

The Executive (the PM and his Council of Ministers) is a part of LEGISLATURE. The PM is also the leader of the party which secures majority of seats in the Parliament.

Both the executive and legislature work in close co-operation with each other.

The council of ministers are collectively RESPONSIBLE to the Parliament. If a No-Confidence motion is passed in the House, the entire ministry has to resign.

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where L is the VIBRATING length, m the mass per unit length (linear density) of the string, and T the tension in the string.

Law of length: The FUNDAMENTAL frequency of vibrations of a stretched string is inversely proportional to its vibrating length if the tension and mass per unit length are kept CONSTANT.

Far sightedness : convex lens

EXPLANATION:

.........................

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EQUAL VECTORS

TWO or more vectors are said to beequal when their magnitude is equaland also their direction is the same. The two vectors shown above, areequal vectors as they have both direction and magnitude equal.

Explanation:

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ong>Answer:

LIGHT

Explanation:

light is FAST than every in WORLD

ong>Answer:

in every SITUATION TREE gives us only

Explanation:

tree gives us HOUSE ,food , MEDICINE WOOD etc..

e of contact of mercury with the glass TUBE is greater than 90o and it makes upper MENISCUS with glass, so mercury level drops in a CAPILLARY tube.

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ong>Answer:

formula to find velocity = v-U+at

but you haven't given the time.

for ex- a = 5m/s square in 10 secs

EXPLANATION:

so, we will USE the formula

v = u+a*t

v = 0m/s + 5 * 10

v = 5*10

v = 50m/s square

u stands for INITIAL velocity

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ong>Explanation:

The VALUE of acceleration due to GRAVITY 'g' is affected by

Altitude above the EARTH's surface. Depth below the earth's surface. The shape of the earth. Rotational motion of the earth.

Values of g in SI: 9.806 ms-2

Values of g in CGS: 980 CM s-2

Formula: g = GM/r2

Dimensional Formula: M0L1T-2

25 MM YSS after the PEBBLE is droped

.....................

ong>Answer:

LIQUID PRESSURE......HOPE you GOT it

ong>ANSWER:

VOLUME will decreased

Explanation:

from 0°C to 4°C volume of WATER decreases and after 4°C it's INCREASED.

from 10°C to 4°C temperature will decreased so volume wil be decreased.

Force on block B by the A

Explanation:

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7.5m/s^2

Explanation:

force=mass*accleration

accleration=force/mass

15000/2000

=7.5m/s^2

ong>ANSWER:

ASK your question in ENGLISH

dffgggghhfggggrtfhjj

true

Explanation:

A vector × B vector = -B vector × A vector

28 m/s

HOPE this HELPS you

ong>Answer:

When an ACID REACTS with metal, a salt and hydrogen are PRODUCED: acid + metal → salt + hydrogen An example: nitric acid + calcium → calcium nitrate + hydrogen The salt that is produced depends UPON which acid and which metal react.

ong>ANSWER:

Newton's laws of motion RELATE an object's motion to the forces acting on it. ... In the second law, the force on an object is equal to its mass TIMES its acceleration. In the third law, when two objects interact, they apply forces to each other of equal MAGNITUDE and opposite direction.

Explanation:

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0°

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ong>EXPLANATION:

Bose Einstein CONDENSATE is a SUPERFLUID, which is FUNDAMENTALLY different from an ordinary liquid or GAS. ... Under high pressure helium solidifies, and at very (very) low pressure it forms a superfluid when cooled from the gas phase.

Given:-

→Force = 100N

→Distance covered = 80m

→Angle = 60°

To FIND:-

→Work done

Solution:-

We know that:-

=> W = F × s × cos θ

Where:-

•W is work done

•F is force

•s is distance covered

Here, θ = 60°

=> W = 100×80×cos 60°

•Value of cos θ at 60° = 0.5

=> W = 100×80×0.5

=> W = 4000 J

Thus, work done is 4000 J.

Some Extra Information:-

•Work done by a force on a BODY is the product of force and displacement of the body.

=> W = F×s

•Work is a scalar quantity.

•The S.I. unit of work is joule. The C.G.S. unit of work is erg.

=> 1J = 10⁷ erg.

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ong>EXPLANATION:

Let the TWO plates are KEPT parallel to each other separated be a distance d and cross-sectional area of each plate is A.

Electric field by a single thin plate E ′ = 2ϵ oσ

Total electric field between the plates

E= 2ϵ o

σ + 2ϵ oσ

Or E= ϵσ

Or E= AeQ

Potential difference between the plates V=Ed

⟹ V= AϵoQd

Capacitance C = VQ

Thus we get capacitance of parallel plate CAPACITOR C = dAϵ o

solution

ong>Explanation:

Ammonium SULFATE (sometimes abbreviated as AS or AMS) has been produced for more than 150 years. INITIALLY, it was made from ammonia released during manufacturing coal gas (used to illuminate cities) or from coal coke used to produce steel. Today, manufacturers make it by REACTING sulfuric acid with heated ammonia.

60

EXPLANATION:

since angle of incidence and angle of REFLECTION is equal so 30+30=60

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I will TRY this QUESTION give me few minutes I'll answer.

1/0 is CORRECT answer HAI

ong>ANSWER:

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