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ong>ANSWER:

true.

Explanation:

a mass ATTRACTS particles towards its CENTRE hence the charge WOULD be at the centre

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Given:

Mass of Bullet = 10g

Velocity of Bullet = 100 m/s

Mass of gun = 500 g (0.5kg)

To Find:

Momentum of Bullet?

Velocity of Gun?

Momentum of Gun?

Solution:

❖Momentum of Bullet;

Mass of bullet is 10g

=> 1KG = 1000 g

=> kg = 10/1000

=> kg = 0.01 kg

Momentum = Mass

★

Momentum=Mass×Velocity

Where

p = Momentum

m = Mass

v = Velocity

➙ p = m × v

➙ p = 0.01 × 100

➙ p = 1 kg.m/s

Momentum of bullet is 1kg.m/s.

★

Momentum

(Bullet)

=Momentum

(Gun)

After substituting values,

➙ Momentum (bullet) = Momentum (Gun)

➙ m × v = m × v

➙ 0.01 × 100 = 0.5 × v

➙ 1/0.5 = v

➙ v = 2 m/s

Velocity of Gun is 2 m/s.

❖Momentum of Gun;

★

Momentum=Mass×Velocity

➙ p = m × v

➙ p = 0.5 × 2

➙ p = 1 kg.m/s

Hence,

The Momentum of gun is 1 kg.m/s.

_____________________

Explanation:

100% CORRECT answer

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er:

EXPLANATION:

A large band gap means that a lot of ENERGY is required to excite valence electrons to the CONDUCTION band. Conversely, when the valence band and conduction band overlap as they do in metals, electrons can readily JUMP between the two BANDS meaning the material is highly conductive.

ong>Explanation:

Due to application of BRAKES, the car produces 4 m/s2

acceleration in the opposite direction to the

motion. If the car TAKES 2 seconds to stop after the application of brakes then, calculate the distance

travelled by car during this time.

ong>Answer:

The Bohr magneton is the magnitude of the magnetic dipole MOMENT of an ELECTRON orbiting an atom with such angular momentum. According to the Bohr model, this is the GROUND state, i.e. the state of lowest possible energy.

Explanation:

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n that,

FORCE = 12N

MASS = 4kg

Time = 3s

Velocity = ?

Kinetic Energy = ?

Let's calculate velocity,

F = ma { a = v/t }

F = mv/t

12 = 4×v/3

v = 9 m/s

Let's calculate Kinetic energy = 1/2mv^2

1/2×4×9×9

162 J.

Therefore, the Kinetic energy is 162 J.

Hope this helps you.

Thank you for your question.

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ong>Answer:

This postulate is often CALLED the principle of EQUAL a priori PROBABILITIES. It says that if the MICROSTATES have the same energy, VOLUME, and number of particles, then they occur with equal frequency in the ensemble.

Explanation:

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what

EXPLANATION:

what is your QUESTION ☺☺

TYPES of ELECTRIC bell

• Interrupter bells.
• Buzzers.
• Single-stroke bells.
• Telephones.
• Fire ALARMS.

A solution is defined as a homogenous mixture which mainly COMPRISES two components NAMELY solute and solvent.

On the basis of physical states of solvent and solute can be categorized as SOLID, liquid and gaseous solutions.In solid solutions, solute and solvent are in the solid-state. In liquid solutions, solid, gas or liquid is MIXED in a liquid state. Gaseous solutions are usually homogenous mixtures of gases like air. Depending upon a number of solutions and solute, it can be CLASSIFIED into dilute and concentrated solutions.

Different Types of Solutions

• supersaturated solution
• unsaturated solution
• saturated solution

The solutions are of two forms, depending on whether the solvent is water or not.

• Aqueous solution
• Non-aqueous solution

NOTE

There in the image it's disadvantages and advantages of solution.

Go through it.

Hope I understood you question properly and it helped you.

1/v-1/u=1/f

Explanation:

this is the LENS FORMULA

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THA answer is a (C) I am not RIGHT

effect of the INTENSITY of INCIDENT RADIATION on the stopping potentialin?

ong>ANSWER:

Correct OPTION is

A

π/2

Initially ν=900r.p.m=

60

900

=15 s

−1

Thus ω

1

=2πν=30π rad/s and ω

2

=0

Using, ω

2

=ω

1

+αt, where t=60 s, we get:

0=30π+α(60)

or, α=−

2

π

rad/s

2

(-ve SIGN shows angular retarding acceleration)

MASS = 2 kg

Acceleration = 5 m/s

Force = ?

We know,

Force = Mass × Acceleration

Force = 2 × 5

Force = 10 N

Therefore, the force is 10 N

ong>ANSWER:

In mathematics, particularly in LINEAR algebra, tensor analysis, and differential ... Most AUTHORS choose ε1 2 ... N = +1, which MEANS the Levi- Civita symbol equals the sign of a permutation  .

I THINK it should be

(C) 13:2:1

Explanation:

n't know this ANSWER and I cannot explain me is very hard I am in 5TH standard SORRY

A geostationary orbit can be achieved only at an altitude very close to 35,786 KILOMETRES (22,236 miles) and directly above the equator. This equates to an orbital SPEED of 3.07 kilometres per second (1.91 miles per second) and an orbital period of 1,436 minutes, one sidereal DAY.

(1) Rancidity of food

It is a slow oxidation of oils and fats present in food MATERIAL RESULTING in some bad small and taste. Rancidity of food can be prevented by: (1) Adding Anit-Oxidants to food containing fats and oils. (2) By packing fat and oil containing food in NITROGEN gas

Explanation:

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ong>Explanation:

Distance is a SCALAR quantity that refers to "how much ground an object has covered" during its motion. Displacement is a VECTOR quantity that refers to "how far out of place an object is"; it isthe object's overall change in POSITION.

ong>Answer:

ALPHA particle, positively charged particle, identical to the nucleus of the helium-4 ATOM, SPONTANEOUSLY emitted by some radioactive substances, consisting of two protons and two neutrons bound TOGETHER, thus having a mass of FOUR units and a positive charge of two.

Explanation:

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ACETIC ACID

Explanation:

Acetic acid

The fermions can only be described by Antisymmetric wave function whereas bosons can be represented by Symmetric wave function. the spin wavefunctions are in a SEPARATE space. and they are building blocks of matter. ... Fermions INCLUDE all QUARKS, leptons and composite particles

ong>A mixture of concentrated NITRIC and hydrochloric acids. It is a HIGHLY CORROSIVE liquid ABLE to attack gold and other RESISTANT substances.

ong>Answer:

Myopia is CAUSED by the shape of the EYE; either the eyeball is slightly too LONG or the cornea (the clear COVERING of the front of the eye) is too steeply curved. Myopia is CORRECTED by spectacles or contact lenses with lenses which are 'minus' or concave in shape

CIRCULAR motio holayib

ong>Answer:

50 m

Explanation:

• GIVEN : u = 0 m/s
• : v = 20 m/s
• : T = 5 s
• To FIND : S = ?
• We know that
• a = v - u/ t
• a = 20 - 0 / 5
• a = 4 m/s²

Now

By 2 equation of motion

S = UT + 1/2 at²

S = 0 × 5 + 1/2 × 4 × 5²

S = 0 + 1/2 × 4 × 25

S = 1 × 2 × 25

S = 50 m

Hope It helps you

Thanks

ong>Explanation:

It REFERS to an acceleration that ACTS on the body in circular MOTION WHOSE direction is always towards the center of the path. CENTRIPETAL Acceleration (α) = v2/r = rῶ2. The magnitude of this acceleration by comparing ratios of velocity and position around the circle.

ong>ANSWER:

When a bus stops SUDDENLY, its passengers tend to fall forward because due to their INERTIA the passengers tend to remain in a state of MOTION EVEN though the bus has come to rest.

n that,

Force = 12N

Mass = 4kg

Time = 3s

VELOCITY = ?

Kinetic ENERGY = ?

LET's CALCULATE velocity,

F = ma { a = v/t }

F = mv/t

12 = 4×v/3

v = 9 m/s

Let's calculate Kinetic energy = 1/2mv^2

1/2×4×9×9

162 J.

Therefore, the Kinetic energy is 162 J.

Hope this helps you.

Thank you for your question.

Mark me as brainleist.

ong>Answer:

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ong>ANSWER: We KNOW coefficient of variation C. V. =

x-σ

x ×100

∴   60= x

-20 ×100   ∴    

x

ˉ

=33.33(nearly)

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curved CIRCULAR Motion

1st OBJECT will COME down

ong>ANSWER:

COPPER as it is a good CONDUCTER.

OPTION c

Explanation:

I THINK option c is CORRECT

The capacitance of each of the 5 capacitors = 10 F

To find:

Possible CONNECTIONS for the five capacitors to produce a total capacitance of 50 F.

Solution:

If there are 5 capacitors of 10 F capacitance then if we CONNECT all of them in parallel then the EQUIVALENT capacitance will be:

C = 10 + 10 + 10 + 10 + 10

C = 50 F

Only, if all the capacitors are connected in parallel, then only the equivalent capacitance will be 50 F.

Hence a parallel connection for the five capacitors will produce a total capacitance of 50 F.

ong>Answer:

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