Explore topic-wise InterviewSolutions in Current Affairs.

Electrostatic force means ionic BONDING between TWO particles then some ENERGY is realized it's is KNOWN as electrostatic force it's ALSO known as coloumb force

Given:

m=60.0 kg
g=9.8m/s² (ASSUMING they haven't BUILT any extraterrestrial buildings, lol)
h=74.8 m

GRAVITATIONAL POTENTIAL Energy = mg∆h

= 60.0×9.8×(74.8-0)

= 43,982.4 J

Yssrudwethjfdrthjjjhikoiyshsjsshsh

Length of MINUTE hand = 10cm
For one revolution ,minute hand TAKES time = 1 hour
= 60minutes = 60 × 60sec
= 3600 SEC
so, time PERIOD of minute hand , T = 3600 sec

so, angular velocity , ω = 2π/T
= 2π/3600 = π/1800 rad/s

∵ linear velocity = angular velocity × length of minute hand
= π/1800 × 10 cm
= π/180 cm/sec

A SCALAR quantity is a ONE dimensional MEASUREMENT of a quantity, like temperature, or mass. A vector has more than one number associated with it. A simple example is velocity. It has a MAGNITUDE, called speed, as well as a direction, like North or Southwest or 10 degrees west of North.

.HOPE it HELPS you......

Heya!

here is your answer..


In short cut the boiling WATER reactor is known as BWR. The boiling water reactor is one of the TYPES of light water nuclear reactor which is used for the GENERATION of power. This method is the most common type for generating the electricity generator nuclear reactor after the PWR (Pressurized water reactor) which is another type of light water nuclear reactor. The difference between the boiler water reactor and pressurised water reactor is, it heats the water with the help of the reactor core and then the water turns into steam, with the help of the steam the turbine must be driven.


plse mark as BRAIN list

One DROP of diameter is D BREAKS into 27 drops of diameter d
∴ volume of big drop = 27 × volume of SMALL drop
⇒1/6πD³ = 27/6 πd³
⇒D³ = 27d³
⇒D³ = (3d)³
⇒D = 3d -------(1)

∵ change in surface energy = Surface tension × change in AREA
= T [27area of small drop - area of big drop]
= T[ 27 × πd² - πD²]
= Tπ[27(D/3)² - D²]
= πT[3D² - D²]
= 2πD²T

Hence, change in surface energy = 2πD²T

The S.I. UNIT of HEAT is JOULE

As a result of this, sound PERSISTS for some time even after the source has stopped producing sound. Revertebration is the process ofpersistence of sound due to repeated reflection. In a BIG hall or AUDITORIUM, excessive REVERBERATION is highly undesirable.

Hello FRIEND....

The ANSWER of u r QUESTION..

Option.d

Thank you...

After TESTING the FLOW of CHARGES by USING a TESTER

Considering it as a sine curve
PHASE ANGLE at A = pi/2
Ohase angle at B = 3*pi/2
Hence phase difference = 3*pi/2 - pi/2 = pi

Energy stored PER UNIT volume is GIVEN by
E = 1/2 × strain × stress -------(1)
Here E is energy per unit volume .

∵ Young's modulus , Y = stress/strain
so, strain = stress/Y , put it in above equation (1)

E = 1/2 × stress/Y × stress
= stress²/2Y

Given, Stress = x and Young's modulus, Y = y
Then, E = x²/2y

Hence, OPTION (D) is correct

Let, W be the mass of uniform scale,
When the EDGE is placed at 58 cm MARK and 20 g weight suspended at one end, then uniform scale would be balaced.

Applying here the principle of MOMENTS:

The uniform scale weight would be balanced at MID point i.e. 50 cm of the scale.
A weight of 20 g is placed at 58 cm mark.

So the clockwise moment due to mass of the scale will be W(50-42) = 8W

The anticlockwise moment due to mass 20G will be 20*(50-8) = 840.

For equilibrium, clockwise moment = anticlockwise moment

So, 

W x 8 = 840
W = 105 g 

The wight of the uniform meter = 105 g.

If an instantaneous current is
= a + bsinωt , where IDC denotes DIRECT current and Iac denotes alternating current.
Then, EFFECTIVE current is given by

Given, I = 3 + 4sinωt
Compare from above equation
a = 3 and b = 4
Now, Ieff =

Hence, answer is √17 A

Kepler three LAWS are as follows:
1: The orbit of a planet is an ellipse with the sun at one of the foci.
2: The LINE joining the planet and the sun sweeps equal areas in equal INTERVALS of time.
3: The square of its PERIOD of revolution around
the sun is directly proportional to the cube of the mean distance of a planet from the sun.

Hello friend...!!

⇒ ACCORDING to the question, we should calculate the distance penetrated by the bullet into the block 

given that :

⇒ U = 150 m/s

⇒ v = 0 

⇒ t = 0.03 sec 

⇒ m = 10 g = 0,01 Kg

we know that , S = ( v² - u²) / 2a  ------------( 1 )

we should calculate acceleration ,  v = u + at 

a =  ( v - u ) / t

a = ( 0 - 150 ) / 0.03

a = -5000 m/s² ---------------( 2 ) 

substituting equation ( 2 ) in ( 1 ) gives ,

S = { 0 - (150)² } / - ( 2 x 5000 )

S= 22500 / 10000

S = 2.25 m 

therefore, the distance penetrated by the bullet is 2.25 m

to calculate force ,we know

F = m x a 

⇒ F = 0.01 x 5000

⇒ F = 50 N 

the force exerted by the wooden block on the bullet  is 50 N 

__________________________________________

HOPE it helps..!!

Hope it HELPS u. PLS MARK my ANSWER the BRAINLIEST

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

The DEGREE of CONVERGENCE or divergence of a lens is called POWER of the lens.
Its si unit is dioptre.
Concave lens has negative power.

Power of the lens, P = 1/f(m)
= 100/50
= 2 D

No they will be not same coz the gravitational FORCE exerted by MARS on us is different from that of exerted by EARTH...
Mass remains the same
Mass is dependent on the molecules in a system
so as we are the system or no. of molecules in us remains constant on Mars and Earth So THEREFORE it remains constant and does not vary..

Hello friend

Here , it is GIVEN that
T is FORCE it means it is EQUAL to
I.e,

T = mass × acceleration
And its dimensional formula is

T = [M][L][T]^-2

And m is the mass per unit so

m = mass/length
m = [M][L]^-1

And x = T/m

Then dimensional formula of x is

x = [M][L][T]^-2/[M][L]-1
x = [L]^2/[T]^2

I think in this question under ROOT over T/ m is missing

And if under root is mention then dimensional formula of x is

x=[L]/[T]

And the given quantity is velocity
I hope this may help u

A pair of scissors MUST have its MA less than 1, as it doesn't multiply force, instead its blades must cut the material FAST.
A pair of PLIERS must have its MA more than 1, as it needs to multiply force, so that a NAIL can be pulled out by applying relatively less force (just an example).

A point CHARGE of 0.009μC is PLACED at origin. And we have to find electric field intensity at (√2, √7, 0)

So, position VECTOR , r = (√2 - 0)i + (√7 - 0)j + (0-0)k
r = √2i + √7j + 0k

Now, electric field intensity , E =
MAGNITUDE of position vector , r = √{√2² + √7² +0²} = 3 unit
Now, E = 9 × 10⁹ × 0.009 × 10⁻⁶ (√2i + √7j + 0k)/(3)³
E = 81/27 (√2i + √7j + 0k)
E = 3(√2i + √7j +0k) N/C

Magnitude of Electric field intensity , E = 9 N/C

I thoughr SIGNIFICANT numbers are those which COME after 0 DECIMAL..
in 0.002308 there are 4 significant numbers
Hope it helps U

Cp= q/n*DELTA t
= 70/2*5=7
We KNOW that for diatomic gas
Cp/Cv=7/5
So Cv=5
Cv=q/n*delta t
5=q/2*5
q=50 calories
HOPE it HELPS you

In CAMERA CONVEX LENS is PRESENT

When body MOVE FRM one place to another then there is PRESENCE of motion
and when body will nt move then there is ABSENCE of motion

HOPE it helps u
☆☆☆☆☆♡♡
☆☆♡

∵ BAND width = 2 × n × HIGHEST modulation frequency
Here n is the number of amplitude modulated broadcast stations

Band width = 300 kHz
Highest modulation frequency = 15 kHz
so, 300 kHz = 2 × n × 15 kHz
⇒300 = 30N
⇒n = 10


Hence, number of stations = 10

Let TWO forces F₁ and F₂ are given
A/C to question,
|F₁| = 2|F₂|
Resultant of two forces F₁ and F₂ are given by
R = F₁ + F₂

A/C to question,
R is PERPENDICULAR upon SMALLER force.
Here smaller force is F₂.
So, R.F₂ = 0
⇒(F₁ + F₂).F₂ = 0
⇒F₁.F₂ + F₂² = 0
⇒|F₁||F₂|cosФ + |F₂|² = 0
Now, PUT |F₁| = 2|F₂|
⇒2|F₂|.|F₂|cosФ + |F₂|² = 0
⇒2cosФ + 1 = 0
⇒cosФ = -1/2 = cos120°

Hence, angle between two forces is 120°

U can get the answer as....

Total distance covered by the particle = 4A.

we divide this WHOLE PATH in 8 intervals of A/2.
so, 5/8 oscillations means, it has already completed 1/2 oscillation(i.e. total dist. = 2A) and is half way to the other side i.e. A/2.

so, A/2 = Asinwt, w= 2pi/ T ,

substitute to get t= T/12.

now, total TYM taken = tym to complete
previous ONE half(2A) + tyn taken to complete

A/2 = t/2 + t/12 = 7T/12.

hope it will help you..

Do it USING the FORMULA (1/2)X(STRESS)x(STRAIN)

SPEED of BOAT in STILL WATER is 4 km/hr

Michale FARADAY .
HOPE it HELPS you

Mechanical Properties of Fluids. DISTINGUISH between streamline and turbulent flow of a liquid. i) It is an orderly TYPE of motion in which the liquid flows in PARALLEL LAYERS while,turbulent motion is disorderly type of motion. ... iv) Streamline flow is LAMINAR whereas,turbulent flow is non-laminar

A PART is the ANSWER of this que. ATB F(x)=x+c . so f'(x)=a

Ac is not dangerous for US as compared to Dc.....Because ALTERNATING CURRENT vibrates +vely 50 times and -vely 50 times...so it is not dangerous to humans...Rather than Dc current flows continuously flows WITHOUT breakinig of current....THANK u,plz mark it as a brainlist

Mere ko malum nahi HAIN
sorry bhai shaayad aadhe GHANTE mein dhoond KE DE DU

You have GOOGLE ASK it

Resistance is a phenomena where the electrons collide with ionic lattice to generate HEAT.  

On the other hand, IMPEDANCE is another TERM for resistance but with the context of reactance

What u r TRYING to ask...we can't GET it properly..!