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C/m² . ........ .... ...

Long-sitedness is known as HYPERMETROPIA .
In this EYE defect there is a difficulty in seeing near objects .
This defect is due to either shortening of the eyeball from front to back or the lense is too flat
• • •
this can be corrected by USING a convex LENS .

When we beat the drum with small blades on it .... we observe that those blades are jumping, and the HARDER we strike the drum the higher the blades will rise and fall. this is also an experiment to prove that the amplitude of a sound can be measured in that WAY.  

hope this was HELPFUL to you!

CHANGE in MOMENTUM,

∆p= m(v-u)

= 0.1(0-30)

∆p = -3kgm/sec.

HII friend,

# Binding energy-

Binding energy is the MINIMUM energy required to disassemble a system of particles into separate PARTS.

# Why heavy nuclei have lesser binding energy?

For heavy or massive nuclei, the positively charged protons on opposite sides of the nucleus are REPELLING each other by electrostatic repulsion, and the strong NUCLEAR force is very weak at these distances. So average binding is weak. hence binding energy is low.

Have a nice day...

Electrochemical cell is a DEVICE which converts chemical energy into electrical energy. On the other hand,ELECTROLYTIC cell is a device which converts electrical energy into chemical energy. ... For EXAMPLE, inelectrochemical cell anode is negative WHEREAS in electrolytic cell, the anode is positive.

Electroplating is a process that uses an electric current to reduce dissolved metal cations so that they form a thin coherent metal coating on an electrode. The term is also used for electrical oxidation of anions on to a solid substrate, as in the formation of silver chloride on silver wire to make silver/silver-chloride electrodes. Electroplating is primarily used to change the surface properties of an object (such as ABRASION and wear resistance, corrosion protection, lubricity, aesthetic qualities), but may also be used to build up thickness on undersized parts or to form objects by electroforming.

The process used in electroplating is called electrodeposition. It is analogous to a concentration CELL acting in reverse. The part to be plated is the cathode of the CIRCUIT. In one technique, the anode is made of the metal to be plated on the part. Both components are immersed in a solution called an electrolyte containing one or more dissolved metal salts as well as other IONS that permit the flow of electricity. A power supply supplies a direct current to the anode, oxidizing the metal atoms that it comprises and allowing them to dissolve in the solution. At the cathode, the dissolved metal ions in the electrolyte solution are reduced at the interface between the solution and the cathode, such that they "plate out" onto the cathode. The rate at which the anode is dissolved is equal to the rate at which the cathode is plated and thus the ions in the electrolyte bath are continuously replenished by the anode.[1]

Other electroplating processes may use a non-consumable anode such as lead or carbon. In these techniques, ions of the metal to be plated MUST be periodically replenished in the bath as they are drawn out of the solution.[2] The most common form of electroplating is used for creating coins, such as US pennies, which are made of zinc covered in a layer of copper.

there are THREE LAWS of MOTION ACCORDING to NEWTON...

Ravi is an object to that a reflex that LIKE a such as a way that for the incident light in same RANGE of the Avengers the reflected light provisions many more or most the deleted PHYSICAL characters of the ORIGINAL like

Your ANSWER is :-


Let, the mass of body A be 3x and mass at d body B be 1x

°•° ration of their KINETIC ENERGY is 1:3

So,


(1/2m1v1^2)/(1/2m2v2^2) = 1/3

=> (3x×v1^2)/(x×v2^2) = 1/3

=> v1^2/v2^2 = 1/9

=> (v1/v2) = √(1/9)

=> v1/v2 = 1/3


hence, ration of their velocity is 1:3

Hello Mate!

SINCE we know that momentum = MASS × velocity.

p = mv

INITIAL momentum = 10 kg × 20 m/s

= 200 kg m/s

Final momentum = 10 kg × 0.2 m/s

= 2 kg m/s

Change in p = Final p - Initial p

= ( 200 - 2 ) kg m/s

= 198 kg m/s

Change in momentum is 198 kg m/s

Have great future ahead!

Yes it is possible,

suppose a less friction exerting body PLACED on the top of another OBJECT.

in this SITUATION if lower body moves with some acceleration then the upper body exert a same acceleration in backward direction.

example :- heavy loads are tightly banded on trucks because of if TRUCK required any velocity then the object exert same velocity in opposite DIRECTIONS.



BE BRAINLY

There will be no REFRACTION of light if the light travels in medium with exact same refractive INDEX, for example there are two mediums A & B, light ray ENTERS medium A & then medium B, there will be no CHANGE in the path of light ray if the refractive index of medium A is equal to refractive index of medium B.

LEDS are mostly used for TWO THINGS: ILLUMINATION and indication.

It means that the current FLOWING between END points of the conductor is 1 AMPERE with a RESISTANCE 1 ohm.

The POTENTIAL difference (VOLTAGE) ACROSS an ideal conductor is PROPORTIONAL to the current through it.

Ohm's LAW - V = I R

The water which are found underground is known as groundwater
the SEQUENCE of CONDITIONS to which water passes from vapour in the ATMOSPHERE through precipitation up on land or water in atmosphere as a result of evaporation and transpiration is known as HYDROLOGICAL cycle
the surface where the water pressure head is equal to the atmospheric pressure is known as water table
there is three type of water table -groundwater vadose zone capillary fringe
a body of variable Rock which can CONTAIN or transmit groundwater is known as aquifer
there are three type of aquifer artesian aquifer confined aquifer unconfined aquifer

It depends on the amount of ENERGY that started the Waves .GREATER amplitude waves have more energy at greater intensity so this sound LOUDER .The same amount of energy is spread over a greater AREA so the intensity and loudness of the sound is less.

Data
M=10kg
V=5m/s
g=10m/s^2
h=?
Formula
PE=mgh
KE=1/2mv^2
Calculation
C) KE=1/2*10*5^2=125J
a) KE=PE
PE=125J
b)h=PE/mg
h=125/100
h=1.25m
d)h=1.25/2=0.625
PE=10*10*0.625
PE=62.5J
PE=KE=62.5J

ELECTRIC magnets have high electric field.

These have aligned PARTS. These can be modified in any DESIRED shape.

the magnetic field of these can be controlled at any time. The magnets can get high magnetic fields varying from -ve to 0 and positive.

it is not easy to handle natural magnets and can't be USED easily by cranes for lifting purpose as they will not drop.

Electromagnets don't LOOSE their strength when heated .

Permanent magnets are not usable after time.

So electromagnets are preferred.

ANSWER:

SEE the ATTACHMENT GIVEN

HIII its will be 0.76356

The thickness of a planet's atmosphere DEPENDS on the planet's GRAVITY and thetemperature of the atmosphere. A planet with weaker gravity does not have as strong a HOLD on the MOLECULES that make up its atmosphere as a planet with stronger gravity. The GAS molecules will be more likely to escape the planet's gravity.

Let's take a concave MIRROR of focal length ,f and a candle in FRONT of concave mirror.

now, we observe FOLLOWING information from the experiment with concave mirror on measuring DISTANCE of object and images.

1. when candle is placed so far from concave mirror[ assume candle is placed at infinity ]
then, image is formed at focus ,F of concave mirror which is real and point sized.

2. when candle is placed beyond CENTRE of curvature of concave mirror then, image is formed between focus and centre of curvature of concave mirror which is real and small sized.

3. when candle is placed at centre of curvature, C , image is formed at C which is real and same as that of object.

4. when candle is placed between C and F , image is formed behind C which is enlarged, real and inverted.

5. when candle is placed at focus , F of concave mirror, image is formed at infinity which is highly enlarged , real and inverted.

6. when candle is placed between focus and pole of concave mirror, image is formed behind the mirror which is enlarged , virtual and erect.

In series
V=IR
I=V/R
I=2/0.4
I=5A
In parallel
I=2/1.666
I=1.199A

Here are the conditions of PRODUCE torque:LET's take a particular example of a disk rotating around an axis through its centre:



If the component of the torque parallel to the axis is TaTa then the disk will start to rotate according to the angular VERSION of Newton's second law:

Ta=Iω˙(1)(1)Ta=Iω˙

where ω˙ω˙ is the angular acceleration and IIis the moment of inertia. The obvious way to make this rotate is to apply a tangential force:



In this CASE the magnitude of the torque is just T=rFT=rF and the direction of the torque vector is parallel to the axis so Ta=T=rFTa=T=rF and equation (1) tells us that the disk will start rotating.

Hii FRIEND,

# Answer- L = 75.0405 CM

# Given-

Lo = 75cm

α = 20×10^-6 /degree-celcius

ΔT = 27 – 0 = 27 degree-celsius

L = ?

# Formula-

We'll USE the formula for the coefficient of linear expansion

L = Lo ( 1 + αΔT)

L = 75 (1 + 20×10^-6 × 27)

L = 75 (1 + 0.00054)

L = 75 × 1.00054

L = 75.0405 cm

Atmospheric PRESSURE at 27℃ is 75.0405 cm of brass.

Hope that was useful...

Nitrification is when the AMMONIA is CONVERTED back to nitrates. This process is DONE by SOIL living bacteria and other nitrifyingbacteria. Denitrification is when the nitrates are reduced back into the nitrogen gas atmosphere, which completes the nitrogen cycle.

Here your ANSWER...........

No it don't but MAKE the FOOD HOT

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Gravitational force acting between to bodies is proportional to the product of their MASSES.

If one body is falling on the other body then calculating the acceleration of the falling body. 

Which is equal to the,

Acceleration =  Force / mass of the falling body

Which is INDEPENDENT of the mass of the falling body. 

Therefore all the bodies FALL with the same acceleration on the other body independent of their masses. 

We know, RATIO of sine of incidence to sine of refraction gives refractive index. Increase in refractive index will increase the range of BENDING. In this case, ANGLE of incidence is same in all cases, therefore angle of refraction will maximum in 'c'. So, it has less refractive index and hence light suffers less bending, which increases its SPEED.

DIA has a property to aligne against the external field and to repel it.

Para will ALIGN according to external magnetic field and HENCE will show a little attraction.

FERRO align ULTIMATELY equal towards the external magnetic field and have a strong attraction.

It' s a SCALAR QUANTITY because it don't have any DIRECTION.

I HOPE this HELPS you