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Hi Mate!!!

LET the RESISTORS be --^^^^---- and ---^'^'^'^'---having resistance R1 and R2

S = R1 +R2

P = R1 × R2 / (R1 + R2)

P = R1 + R2/ s .... equation 1

on compairing equation 1 with S = nP

we get. n = R1 +R2

Have a NICE time..

Kinetic ENERGY can be defined as the energy possesed by BODY virtue of its motion
let a body of mass m moving with VELOCITY u =0 when a force F is applied to move.let V be its final velocity
v*v-u*u=2as
since u=0,v*v =2as
a=v*v/2s
W=Fs=m.a.s
m.(v*v/2s).s
W=mv*v/2=1/2mv*v
this work done =KE
KE=1/2mv*v
plzz mark.as brainlist answer

ACCORDING to work k.energy theorem

Work DONE by FORCE equals change in k.e

So

W=0.5*20(4–25)

W=-210joule

Given P.D. = 12V
Current = .5A
by using FORMULA P = IV
P = 12*.5
P = 6W.
I hope this helps you.

The amount of work DONE depend on VECTOR velocity and PHOTON ENERGY

Look at attachment

centre of cervature .
actually a mirror or lens is form by CUTTING of two lens and mid of the center of this glasses is known as center of cervature.



NOW YOUR QUESTION,


Trace the path of the reflected ray by drawing a figure if it passes from centre of curvature of a

Concave mirror.



FOR PATH LOOK AT ATTACHMENT DIGRAM


✺ when light passes through center of cervature then it retrace it path



REASON


✺because as the ray of light passes through centre of curvature of a concave mirror it strikes the mirror along the normal

MORE CLEARTY

 ✺ it incidences on to the mirror at 90 degree. Hence the incident ray coincides with the normal.    Therefore angle of incidence = 0 so, as we know ACCORDING to law of reflection angle of reflection = 0, hence the angle of reflection too become zero degree, THUS ray of light retraces its path.

Answer:

Dipole MOMENT =4×10

−11

㎝

9=4nC each

distance between charges in dipole =d

9d=4×10

−9

×d

1

=4×10

−11

d=10

−9

m

a) At axis

E

due

to+9=

(0.02)

2

K

9

E

due

to−9=

(0.02)

2

−K

9

E

net

=K

9

[

(0.01)

2

1

−

(0.02)

2

1

]

=27×10

4

n/C

At PERPENDICULAR 0.02m

E

net

=2n

∣E

+9

∣=∣E

−9

∣ at point P

given y=0.02

E

netP

=2∣E∣cosθ

=

⎝

⎛

(

2

d

)

2

+y

2

⎠

⎞

2㎏

⋅

⎝

⎛

y

2

+(

2

d

)

2

⎠

⎞

y

=

⎝

⎛

(

2

0.01

)

2

+(0.02)

2

⎠

⎞

2×9×10

9

×4×10

−9

⋅

⎝

⎛

(0.02)

2

+(

2

0.01

)

2

⎠

⎞

0.02

=

(4.25×10

−4

)

3/2

8

=9.13×10

5

N/C

Explanation:

hope it will HELP you...☺️

The hormones are used for coordination between the various FUNCTIONS in the human BODY and for a better BALANCING of these CHEMICALS the advent of pH is very important. There is LOT of importance of pH ineveryday life of an human being.

FIRST do it with a CERTAIN ANGLE and in the secomd TRY icrease or DECREASE the angle

Calorific VALUE MEANS the energy contained in fuel,
by MEASURING the SPECIFIC quantity of combustion.
It is measured in k/j=kilo joules

Because tube gives more POWER or light than bulb.In LESS ELECTRIC CHARGE.

By the experiment of SOUND not travel in VACUUMED air because air is the way of locomotion for sound because air carry the sound waves. In VACCUM there was no air so sound not travel in vaccum areas because there is no way to travel sound

I hope that's HELP you

Heya!!!!✌✌

here is your answer:

The convection heat transfer COEFFICIENT, in GENERAL, varies along the flow DIRECTION. The mean or AVERAGE convection heat transfer coefficientfor a surface is determined by (properly) averaging the local heat transfer coefficient over the entire surface.

hope it helps!!❤

Difference Between PN Junction &ZENER DIODE. The MAJOR difference between PN junction and the Zener diode is that the PN junction diodeallows current to PASS only in theforward direction, whereas the Zener diode allows the current to flow both in the forward and the reversed direction.

In FORCE because the VELOCITY COMES

That very much DEPENDS on you mate. PLEASE don't MIND anything

The force applied on a SURFACE in a direction PERPENDICULAR or NORMAL to the surface is also called THRUST.

20.833 METRES PER SECOND...

HOPE its HELP you!!

PIEV theory is USED by transport engineers to calculate the TOTAL reaction TIME of a DRIVER. P-Perceptiontime:It is the time consumed in sending the information from eyes to BRAIN of the driver once he sees the obstacle.

Because in eye have cones cell and roads cell and the RESPONSIBLE for COLOUR INTENSITY and pupil adjust itself with the LIGHT intensity

is it use FULL

calcium nitrate

ALUMINIUM hydroxide

BARIUM SULPHATE

Whenever you UPLOAD your question PLEASE upload with OPTIONS if AVAILABLE

PLEASE SUGGEST, and if you have OPTIONS then please SEND the options ALSO

The camel is dubbed the `ship of the desert'. It can adapt itself easily to the HOT conditions due to various reasons. ... This cushion like pad SPREADS when the camel PLACES its FOOT on the ground. The pad supports the animal on LOOSE sand in much the same way that a snowshoe helps a person walk on snow.

INDIA's MARS ORBITER Mission is the country's first mission ever to EXPLORE the Red PLANET.

Hi

Here is ur answer

STATEMENT:

   # The maximum CONSTANT velocity acquired by a BODY while falling through a viscous MEDIUM is CALLED its Terminal Velocity.

  #  It is attained when force of resistance of a medium is equal and opposite to the force of gravity.

DERIVATION:

Expression for terminal velocity,

V = Vt

Density of a sphere = ρ

Density of a viscous fluid = σ

Density of a sphere ROLLING on a viscous force = ( ρ -  σ )

Volume of the sphere = 4 /3 πr³

     Viscous force = mg

6πηrv = mg

6πηrv = ( d × v ) g

6πηrv =  ( ρ -  σ )4 /3 πr³

Here π and r will get cancelled out,

6ηv = ( ρ -  σ )4 /3 r²g

v = ( ρ -  σ )4 /3 r²g × 1 /6η

  = ( ρ -  σ ) 2r²/9η .g

Therefore,

   V = 2r² ( ρ -  σ ) g / 9η

Hope it helps U

HELLO MATE

We see shadows because, there is more light in the surroundings that than there is light at the shadow area. That's why you cannot see a shadow in a dark room. The way shadows are formed in such a way that the shape of the shadows RESEMBLES the OBJECT is because light TRAVELS in STRAIGHT lines.

I HOPE THIS ANSWER IS HELPFUL FOR YOU

Rotational analogue of FORCE is torque.torque= force× perpendicular distance of line of action of force from the AXIS of ROTATION. Sir UNIT of torque is NM not joule.

Your ANSWER is a) 10root2

Hey there is answer !!!
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FREQUENCY of yellow light in air:

f1=vλ1Here,visvelocityofyellowlight in airλ1iswavelengthoftheyellowlight in air

Frequency of yellow light in vacuum:

f2=cλ2Here,cisvelocityofyellowlight in vacuumλ2iswavelengthoftheyellowlight in vacuum

Equate FREQUENCIES in air and vacuum:

vλ1=cλ2cv=λ2λ1But, cv=μaHere, μa is refractive index of airμa=λ2λ1So, λ1=λ2μa

Number of wavelengths in each medium:

In air, n1=tλ1
In vacuum, n2=tλ2

Here, t is thickness of each column

Difference of thickness of each column:

n1−n2=1tλ1−tλ2=1t(1λ1−1λ2)=1tλ2(λ2λ1−1)=1tλ2(μa−1)=1t=λ2μa−1 =6000×10−8 cm1.0003−1 =0.2 cm  =2 mm
 

YES it is CALLED as TIME PERIOD

It CONSISTS of reflection in which the REFLECTED rays of a light are not PARALLEL but take various directions does destroying the image of light ...

(c) MAY be all non-negative
(d) may be positive for some cases and negative for other cases

According to the QUESTION, the centre of MASS is at origin.

∴ X = m1x1 + m2x2 + m3x3 +...m1 + m2 + m3 +....... = 0
⇒m1x1 + m2x2 + m3x3 +... = 0

From the above equation, it can be concluded that all the x-coordinates may be non-negative.

In other words, they may be positive for some cases and negative for others.

Power = work done/ time

mass of WATER = 50kg as density of water is 1 kg/litre or 1g/ml

now in this CASE work done = change in potential energy

work done = mgh - 0

= 50 * 10 *25 J = 12500 J

power = 2500 W

USE PV=nRT

n is no. of moles which we can write as n = N/ avogadro constant

so V is DIRECTLY related to N

Now MOLECULES in 2V LITRE = 2N

because a GRAVITATIONAL force in downward direction always acts no matter in any direction you PROJECT. so it makes the path look PARABOLIC