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Mass of BODY = 25kg
weight on EARTH = mg
= 25 × 10 = 250N
mass on other PLANET = 25 kg bcoz mass is same everywhere
g at planet = GM/R^2
= G×2M/(R/2)^2
= (GM/R^2) ×8
=10×8
=80
Weight on planet= mg
=25×80. =. 2000N

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Let length of train =L
So, time TAKEN crossing poll is the time to travell there length
Time T=distance D/speed S
10=L/S
S=L/10
L=10S
now,
Train crosses 100m plateform in 15 second
Then from FORMULA T=D/S
15=(100+L)/S
S=(100+L)/15---------(2)
PUT value of S from eq1 in eq2
S=(100+10S)/15
15S-10S=100
5S=100
S=100/5
S=20
hence speed of train S=20meter/sec

PROTON never MOVE in an ORBITAL they resides in NUCLEUS of an atom.

A Vector quantity is that quantity, which has magnitude and direction, both ; and which also follow the rules of Vector ADDITION.

Electric Current has magnitude and direction, both. But it does not follow the rules of Vector Addition. When we add two or more Electric Current quantities , we USE rule of scalar addition. In the other words we use ALGEBRAIC method.

Thus, Electric Current is not a Vector.

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50/1000 KG = 0.05 kg
HOPE this helps you
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In SERIES the R=r1+r2+......
In parallel 1/R=1/r1+1/r2+......
So the parrelal effective RESISTANCE should be 1 so the are 5 RESISTER of 5 ohm each

Answer ⇒ 14 N.

Solution ⇒

As per as the question, the force has stopped ACTING, thus, the object will MOVE with constant velocity.

Given, Distance covered = 4 m.

Time taken = 2 seconds.

∵ Velocity = Distance/Time

∴ V = 4/2

= 2m/s

Now, Time = 0.2 seconds.

Using the First equation of motion,

a = (v-u)/t

A = (2 - 0)/0.2

A = 10 ms⁻²

Now, Using the Newton's second law,

Force = mass × acceleration.

∴ Force = 1.4 × 10

⇒ Force = 14 N

Hence the magnitude of the force is 14 N.

Hope it helps.

HEYA.....

Force=mass×acceleration

200N=5kg×acceleration

Acceleration=200/5

Acceleration=40m/sec^2

@SKB

Inverse-square law



S represents the light source, while r represents the MEASURED POINTS. The lines represent the flux emanating from the source. The total number of flux lines depends on the strength of the source and is constant with increasing distance, where a greater density of flux lines (lines per unit area) means a stronger field. The density of flux lines is inversely proportional to the square of the distance from the source because the surface area of a sphere increases with the square of the radius. Thus the strength of the field is inversely proportional to the square of the distance from the source.

The inverse-square law, in physics, is any physical law stating that a specified physical quantity or intensity is inversely proportionalto the square of the distance from the source of that physical quantity. The fundamental cause for this can be understood as geometric dilution corresponding to point-source radiation into three-dimensional space (see diagram).

Radar energy expands during both the signal transmission and also on the reflected return, so the inverse square for both paths means that the radar will receive energy ACCORDING to the inverse fourth power of the range.

In order to prevent dilution of energy while propagating a signal, certain methods can be used such as a waveguide, which acts like a canal does for water, or how a gun barrel RESTRICTS HOT gas expansion to one dimensionin order to prevent loss of energy transfer to a bullet.

"BUOYANCY Formula. Liquid exerts a force on objects immersed or floating in it. This force is EQUAL to the weight of the liquid that is displayed by an OBJECT. This is also known as Archimede's PRINCIPLE. The unit for the buoyant force like other forces is the Newton (n)".

Hey mate i thik it will helps you.......where mm is the mass of the system, bb is some damping coefficient, KK is a spring CONSTANT, and u(t)u(t) is the displacement of the system. This is an equation expressing the balance of three physical effects: mu′′mu″(mass times acceleration), bu′bu′ (damping force), and kuku (spring force). The different physical quantities, such as mm, u(t)u(t), bb, and kk, all have different dimensions, measured in different units, but mu′′mu″, bu′bu′, and kukumust all have the same dimension, OTHERWISE it would not make sense to add them.

Fundamental concepts

Base units and dimensions

Base units have the important property that all other units derive from them. In the SI system, there are seven such base units and corresponding physical quantities: meter (m) for length, kilogram (KG) for mass, second (s) for time, kelvin (K) for temperature, ampere (A) for electric current, candela (cd) for luminous intensity, and mole (m

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GAUTAMA Buddha inspires new INSIGHTS, echo your experience, or challenge your beliefs in some new way.

One famous quote given by him is

Do not dwell in the past, do not DREAM of the future, concentrate the mind on the present moment. Buddha’s WORDS of wisdom have stood the test of time.

Buddha quote has a great impact on Action, Anger, Fear, Health, LIFE, Love, Mind, Personal Development, Self-Reliance, Speech, and Truth.

A perfectly smooth surface would mean no friction so that force is out. If it is on a surface, then there must be gravity between both objects. This means there is some force! The key is that the gravity force attracting the OBJECT and the surface together is balanced by the repulsive force of the outer electrons around all the ATOMS of both the object and the surface. All matter is surrounded by negative electrons so all matter tends to repel other matter when thing get CLOSE together.

So there are two forces - gravity and electrostatic repulsion but they are balanced. Newton’s law says that balanced forces do not produce acceleration so the constant speed of the object REMAINS constant.

Explanation:

Acceleration Due To Gravity

when an object is dropped from some height its velocity increases at the constant rate. In other words when an object is dropped from some height a uniform acceleration is produced in it by the gravitational PULL of the earth and this acceleration does not depend on the mass of the falling object. The uniform acceleration produced in a FREELY falling body due to the gravitational force of the Earth is known as acceleration due to gravity .

It is denoted by the letter g .

The value of g does not depend upon the mass of the body .The value of g changes slightly from place to place but for the most of the purposes it is taken as 9.8 metre /  second

In other words when an object FALLS on the ground under the action of the earth's gravity it velocity increases at constant rate of 9.8 metre PER second for every second of time .

Heya...

Here is your answer...

Given,

NET FORCE = 200N

Time taken = 3 SECONDS

a) Impulse = Force × Time

= 200 × 3

= 600 N.s

b) Given,

Mass of the car = 1200 KG

Change in velocity = 600/1200

= 0.5 m/s

It may help you....☺☺

No the FORCE will be same because ACCERALATION is INVERSELY PROPORTIONAL to force.

here is your ANSWER......

HOPE it HELPS U......

Given conditions ⇒

Force acting = 200 N.

Time = 3 seconds.

Using the Formula,

IMPULSE = Force × Velocity

⇒ Impulse = 200 × 3

⇒ Impulse = 600 N-s.

HENCE, the Impulse provided to the CAR is 600 N-s.

Hope it HELPS.

This activity is to prove that air EXERTS pressure in all directions. Thus, when the air in this balloon is given a way to COME out, the air comes out from the way it FINDS. and as the balloon is attached with the straw the straw too moves with the balloon. The direction in which the balloon moves is the direction of force applied.

For 1st LINE in BALMER SERIES N1 =2,n2=3
1/λ1= 109678[ 1/n12 -1/n22  ]
=109678[1/22-1/32]
=109678*5/36 cm-1
=15233 cm-1
λ1=6.56*10-5 cm
wavelength of LAST line  λ2
1/ λ2=109678[ 1/n12 -1/n22  ]
=109678[ 1/22 -1/∞ ]
λ2=1/109678
=3.65*10-5cm

(C) It is a decelerated MOTION as the SLOPE of V-T graph GIVES acceleration and here it is negative. Also, we can see at t=0, VELOCITY is not zero.

Yes. There are:

□ RECTILINEAR FORCE

□ FRICTIONAL Force

□ Normal Surface force

that ACTS

Given CONDITIONS ⇒

Mass of the ball = 6 KG.

Velocity = 2.2 m/s.

Using the FORMULA,

Momentum = mass × velocity

∴ p = MV

⇒ p = 6 × 2.2

∴ p = 13.2 kgms⁻¹.

HENCE, the momentum of the ball is 13.2 kgms⁻¹.

Hope it helps.

Electric potential energy, or electrostatic potential energy, is apotential energy (measured in joules) that RESULTS from conservative Coulomb forces and is associated with the CONFIGURATION of a particular SET of point charges WITHIN a definedsystem.

F=ma
m=15000kg..
a=v/t =3m/s^2
F=15000×3=45000N

Normal resting blood pressure in an adult is approximately 120 millimetres of mercury (16 kPa) SYSTOLIC, and 80 millimetres of mercury (11 kPa) diastolic, abbreviated "120/80 mmHg".

Increased pressure in the veins does not decrease flow as it does inarteries, but actually INCREASES flow. Since pressure in the veins is NORMALLY relatively low, for blood to flow BACK into the heart, the pressure in the atria during ATRIAL diastole must be even lower.

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Bhujia UTTAR PRADESH KI FAMOUS HAI

While a VOLTMETER DRAWS a small current from the cell for its operation.So it measures the terminal p.d. in a closed circuit which is LESS than the emf of a cell.That is why a POTENTIOMETER is preferred over a voltmeter for measuring the emf of a cell.

Velocity of one TRAIN relative to other,

it means, if the distance between trains is 60km then two trains will crash after 60/60 h = 1hr .
now velocity of bird with respect to train towards which it is moving will be 60km/h + 30km/h = 90 km/h,
so, time taken by bird for the 1st trip is


in this time train moves towards each other
so, the REMAINING distance = 60 - 40 = 20km

similarly time taken by bird in 2nd trip = 20/90 hr = 2/9 hr = 2/3² hr
so, PROCEEDING in this way time taken by bird in nth trip = 2/3ⁿ hr

now if the bird makes N trips TILL trains crash.


hence, number of trips = infinity.

now distance covered by bird in 1st trip = 2/3 × 60 = 40 km
distance travelled by bird in 2nd trip = 2/9 × 60 = 40/3km...

Screw gauge is an instrument that is generally used for MEASURING the external measurement or diameter of an object. ... It is sometimes PREFERRED oververnier CALIPER as it can take the minimum measurement of 0.01 MM, WHEREAS vernier caliper can measure as least as 0.1 mm.

EXPLANATION:

In the CIRCUIT of the FIGURE, determine (a) the current in each resistor and (b) the potential difference ACROSS the 200 Ω…

Your EXPLANATION GIVEN on PICTURE

It's DEPENDS UPON DENSITY and DEPTH

Its POTENTIAL ENERGY and it is CALLED CHEMICAL potential energy.

Hey here is your ans

《《《《□□The term significant figures actually refers to particular DIGITS in a number.□□□□》》》》
Only those figures or digits of a numerical quantity which are the RESULT of actual measurement are said to be significant. For example, if you measure the thickness of a coin, you can write it as

1.6 MM or 0.16 cm or 0.0016 m.
How many significant figures are there in this measurement? Clearly only the digits 1 and 6 are the actual measured values. Therefore we have only 2 significant figures. Zeros used as PLACEHOLDERS are not significant. This would include all of the zeros in 0.0016 m

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