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DANISH physicist, H.C. OERSTED ESTABLISHED the RELATION between electricity and magnetism.

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because bonafide cerificate is GIVEN to students by this certificate it is PROOF that he/ she is a student of a PARTICULAR class and course in the institution during a specified time period.

m1 - mass of bullet = 200 g = 0.2 kg

m2 - mass of GUN = 1 kg

V1 - VELOCITY of bullet = 5 m/s

V2 - velocity of gun = ??

ACCORDING to law of conservation of linear momentum,

Linear momentum=Linear momentum

before firing after firing

0 = m1 V1 + m2 V2

V2 = - m1 V1/m2

= - 0.2×5×1

V2 = - 1 m/s

Velocity of the gun = -1 m/s.

In PARALLEL COMBINATION in voltage remain same that is the potential DIFFERENCE across the two points remains same.
Therefore,
P:P' = V²/R:V²R'
=>P:P' = 2R:2 = 2:1.

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There will be no change in the path of the light ray if it passes through a medium with same refractive index as the other.

Refraction occur due to change in speed of the light. When ever the light enter a different medium with different characteristics, it CHANGES its path due to the DIFFERENCE in the arrangement of particles in that medium, for example, let suppose a light ray entering a denser medium, the inter molecular particles are tightly bounded by each other & they have more force acting around them, since we KNOW that light have particle nature too, so the light particles are attracted inside the medium, which cause an abrupt change in the path of the light ray. Similarly in the CASE of rarer medium, the particles of the medium are not close enough, there's a weak force between them, but still they occupy the space inside the medium, so without being attracted inside, light ray FIND a path way colliding the particles of the medium which again causes sudden change in the path of light ray, which is basically known as refraction.

20MIN

MAXIMUM VALUE is....

200

What is your QUESTION...??

What is MEANT by MIRAGE?
mirage is the OPTICAL ILLUSION.

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■ TO SHOW THAT SOUND TRAVEL THROUGH SOLIDS....■

● PLACE one of your ears on a table and CLOSE the other ear with your hand.
●Ask your friend to gently tap on the table.
-----Are you ABLE to listen to the sound?

You will find that sound can travel through METAL or wood...

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No it's not a POSSIBLE EVERY body and every OBJECT have different energy

ORIGINAL p.e=mgh=4x5x10=200 J

New p.e=mgh=4x10x10=400 J

Therefore,

change or increase is new p.e -original p.e which is 200J

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Sanitation refers to public health conditions RELATED to clean DRINKING WATER and adequate treatment and disposal of human excreta and sewage. ... A sanitation system includes the capture, storage, transport, treatment and disposal or REUSE of human excreta and wastewater.

V = v0 + G t
h = v0 t + g t²/2 = 20
(EVERYTHING MEASURED downwards)
Ek = (1/2) m v²
=> Ep = m g h = 196.2 m = (1/4) m v²
=> v ² = 784.8
=> v = 28.014 m/s
28.014 = v0 + 9.81 t
20 = v0 t + 4.905 t²
⇒ 20 = (28.014 - 9.81 t) t + 4.905 t²
= 28.014 t - 4.905 t²
⇒ 4.905 t² - 28.014 t + 20 = 0
This is a quadratic equation in t
t = (28.014 ± 19.809)/9.81
The SOLUTION with the - sign yields
t = 0.836 s ⇒ v0 = 19.82 m/s

A CONSTELLATION is a GROUP of stars that MAKE an imaginary shape in the night sky. They are usually named after mythological CHARACTERS, people, animals and objects. In different parts of the world, people have made up different shapes out of the same groups of bright stars. It is LIKELY

Work : In physics work is DEFINED if force applied on OBJECT displaces the object in direc¬tion of force. Hei-e all THREE TERMS force, dis¬placement and DIRECTION of force are important W= Force x displacement (force in direction of displacement)

Initial Velocity FORMULA. Velocity is the RATE that the position of an object changes relative to time. Forces acting on an object CAUSE it to accelerate. This ACCELERATION changes the velocity. The initial velocity,vi is the velocity of the object before acceleration causes a change.

The MEAN free path equation DEPENDS UPON the temperature and PRESSURE as well as the molecular diameter. and times the average molecular separation of X 10^ m

At the CENTRE, the MAGNETIC FIELD LINES are STRAIGHT

I THINK it is EARTH

The Dot Product GIVES a scalar(ORDINARY NUMBER) answer, and is SOMETIMES called the scalar product. But there is also the Cross Productwhich gives a vector as an answer, and is sometimes called the VECTORPRODUCT.

A) xM and Mxn b)Mxn and ... 2) An infinite solenoid (n turns PER UNIT LENGTH, current I) is filled with linear material of susceptibility χm. Find the MAGNITUDE of the magnetic field ...

Heaven, or the HEAVENS, is a COMMON religious, cosmological, ... The ENGLISH term has COGNATES in the other Germanic LANGUAGES: Old Saxon heƀan ..... The Bahá'í writings describe heaven as a "spiritual condition" where closeness to God

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⭐Actually WELCOME to the concept of the DISSOCIATION OF ELECTROLYTES..

⭐Basically we know that .electrolytes are those compounds or solutions that conduct electricity through them ...

⭐Thus to pass or conduct electricity they DISSOCIATE into CATIONS and anoins in the solution ...

⭐Thus after passing electricity through them they undergo Electrolytic dissociation or ELECTROLYSIS ...

⭐THUS THIS IS CALLED AS ELECTROLYTIC DISSOCIATION OR ELCTROLYSIS OF ELECTROLYTES ..

_________________________

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A buoyant force is a force which MAKE THINGS float is called buoyant force.For ex an AIR FILLED ballon float over the water surface.

When an OBJECT produces vibration and travels through air or any medium and can be HEARD with a human's or animal ear is KNOWN as sound. Orgino sound is caused by rapid mechanical vibrations of various ELASTIC bodies.

I do not understand your question but I will give something.

Newton's SECOND Law

While Newton's first law looks at how force affects the motion of objects, the second law dives into how we define force itself. Newton's second law states that an object's acceleration (or a) is directly proportional to the net force (or F) ACTING on it and INVERSELY proportional to its mass (or m). Unlike Newton's first law, there is no shorthand name for this one, but it is better known by its mathematical formula, which you can see:



However, it is far more common to see it written in the form where it has an equal sign instead of a proportional sign, which you can see:



This formula tells us that a force acting upon an object is equal to that object's mass multiplied by the acceleration caused by the force. You'll find this formula consistently USED throughout your studies of introductory physics.

One excellent example of Newton's second law at work in our lives is our weight. You might not usually think about it this way, but your weight is actually the gravitational force of the earth acting on you. Your weight is equal to your mass multiplied by the acceleration due to gravity, 9.81 m/s.

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RESISTIVITY DEPENEND UPON ⇨⇨⇨


NATURE OF MATERIALS AND TEMPRATURE


SO
NOT DEPEND ON LENGTH AND
AREA


SO


ALL THREE CONDUCTOR HAVE SAME RESISTIVITY

Because to GLOW the BULB or to SAFE from FUSE.

If FORCE ACTING on a body then Workdone can be zero
This when an object is at rest and no external force except gravity is acting on it in this case the work that would be zero as the force acting on it is perpendicular. Therefore the DISPLACEMENT is zero and if displacement is zero work done would be automatically 0.

Mathematically

W = fs

Is s = displacement is 0

Work = 0

If there is uniform circular MOTION then only the Workdone will be zero this is because in uniform circular motion net force acting on particle is always perpendicular to instentanious VELOCITY so f.ds is always zero
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So, the maximum height above the GROUND at which the BLOCK can be placed WITHOUT SLIPPING is 1/6m
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✨solution:-
✨Mass = 10 kg
Height = 5 m
so, by equation of position VELOCITY relation
v² - u² = 2as
u = 0 m/s
a = G =10 m/s²
s = h = 5m
so, velocity just before hitting the GROUND = 10 m/s
and the kinetic energy = 1/2 mv² = 500 J✨
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To find the torque by the force F= (2i+3j-5k) ACTING on r1= (2i+4j+7k) m about r2= (i+2j+3k) m  

We will find the torque at r1 and subtract it from the torque at r2 as individually they are torques about the origin. USING DETERMINANT METHOD,

τ1 =r1 × F  = i (21+20) + j (-10 -14) + k (8-6) = (41i -24j + 2k)

τ2 = r2 × F=  = i (9+10) + j(-5-6) + k(4-3) = (19i -11j + k)

FINALLY torque about r2 is  

τ2 – τ2 =  19i – 41i -11j+24j +k-2k = (13j -22 I – k)
D)option is right answer.

CORRECT ANSWER and SOLUTION

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HEY DEAR,

Your question is incomplete.

# Complete question-

A Particle Performing SHM is FOUND at its equilibrium at t=1 sec.and it is found to have a speed of 0.25m/s at t=2 sec.If the period of oscillation is 6 sec.Calculate amplitude of oscillation.

# ANSWER - 3/2π m

# Explanation-

ω=2π/T=2π/6

Displacement of particle is GIVEN by

x = A.sin[ωt+ϕ]

At t=1s, x=0,

0 = A.sin[(2π/6)×1+ϕ]

Solving this we'll get

ϕ = -π/3

Velocity of the particle is given by

v = A.ω.cos[ωt+ϕ]

0.25 = A.2π/6.cos[(2π/6)×1-π/3]

Solving this we'll get,

A = 3/2π m

Amplitude of oscillation is 3/2π m.

Keep studying...

There are STRONG EDGES on the SHADOW borders.

The shadow is 'darker' than the surrounding area.

The shadow USUALLY 'deforms' when an OBJECT is rotated.



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