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The difference is ALWAYS constant means from one point to another pointdifference is always constant that ISH. so H is called the INTERVAL of these points. hence we DERIVE two difference operator one is called Newton's forward operator. and another is thebackward operator.Oct 23, 2013

What is the FULL QUESTION.

CORRECT ANSWER with SOLUTION

Ans
uses of convex Mirror:
satellite DISHES, head lights of a car ,telescopes,shaving mirrors, its USED by dentists to get a larger image of the teeth ,electron microscope, magnifying glasses, 
USE of concave Mirror:
1. in Microscope
2. in Telescope
3 in Motor vehicles
4. in solar furnaces to converge LIGHT at a fixed point .

Yes heat can transfer from low temperature object to HIGH temperature object by applying second law of thermodynamics.

Eg; Air conditioning, have the overall effect of TRANSFERRING heat from COLD to hot. however, they do this by allowing a liquid to evaporate( which MAKES it colder than the indoor air)en compressing the vapor back into liquid (which makes it hotter than the OUTDOOR air).

hope it helps....

FREQUENCY = 1/Period

Period = 1500/3 = 500

F = 1/500 = 0.02 Hz.

Velocity = Wavelength * Frequency

=> 68 * 0.02 = 1.36 cm/s

Please CORRECT me if I am WRONG, or clarify any DOUBTS.

Is having more DENSITY than LIQUID

CHANGE in momentum=f× t

=50× 10= 500kg× m/ s

HEY DEAR,

HERE IS YOUR ANSWER.....

CURRENT PER SECOND  = 2.5AMPERE PER SECOND

HOPE IT HELPS YOU.....

NEXT TIME POST FULL QUESTIONS PLZ...

THANKS

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Given:

60watt

6hours

Energy=power×time

=60×6

=360w/h

Magnetic effect of ELECTRIC CURRENT is one of the major effects which FUNCTIONS as the basic principle in APPLIANCES used in various fields of activities. ... The direction of magnetic field through a current CARRYING conductor is determined by the direction of flow of electric current.

---------------------------------------HEY DEAR----------------------------

HERE IS YOUR ANSWER......

B. OPTION IS RIGHT

REASON: AS WE KNOW  POTENTIAL ENERGY = 9- (X-3)^2 J

               SO, IF X=3

               THEN .. U = 9J

HENCE ,

I WANNA SAY THAT THE POTENTIAL ENERGY IS ALWAYS DECRESING IF WE TAKE ANY OTHER VALUE OF X AS (X-3)^2 IS ALWAYS A POSITIVE QUANTITY . BECAUSE THERE IS SQUARE ON IT . SO ALWAYS SOMETHING WILL BE SUBSTRACTED FROM 9J HENCE ONLY ONE CASE IS THERE WHEN NOTHING IS SUBSTRACTED IT IS WHEN X=3

THEN POTENTIAL ENERGY IS MAXIMUM...

HOPE IT HELPS YOU...

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THANKS ..

MARK ME BRAINLIEST PLEASE....

The ability of a LENS to act as converging or diverging depends upon its refractive index. The refractive index n of the material of a lens depends upon the medium in which the lens is placed. Generally the lens is in air so n gives refractive index of material of lens with respect to air. If you PLACE the CONVEX lens in a medium other than air, then due to change in n, the focal length f of lens changes. if n decreases, f increases. 

So if you immerse the convex lens in a liquid WHOSE refractive index is greater than refractive index of material of lens then it will change its nature and become concave lens and thus it will start diverging the rays rather than FOCUSING them on a single point. Its true the other way round also that is concave also becomes convex. 
Hope it helped.......

Hey mate ^_^


● The electric field is zero at all POINTS WITHIN the CONDUCTOR

We PLANT tulshi plant OUTSIDE our HOUSE because tulshi is the one those plant which gives oxygen (O2) day like other plant as well as in in night. ......

THERE FOR WE PLAT TULSHI PLANT JUST OUTSIDE OUR HOUSE ..

Hey mate here is the answer ♥️♥️♥️♥️

Electric CURRENT is defined as FLOW of electrons in wire. 

For EXAMPLE, the electric currents in electrolytes are FLOWS of positively and negatively charged ions.


hope it's helpful_________

This is DONE by using a large wind turbine usually consisting of propellers; the turbinecan be CONNECTED to a generator to generate electricity, or the wind used as mechanicalpower to perform tasks such as pumping water or grinding grain. As the wind passes the turbines it moves the BLADES, which SPINS the shaft.

To distinguish between a plane mirror, a convex mirror and a CONCAVE mirror, the given mirror is HELD near the face and the image is seen.
1. If the image is UPRIGHT, of same size as the object and it does not change in size when the mirror is moved, then the mirror is a plane mirror.
2. If the image is upright, magnified and it BECOMES inverted when the mirror is moved away from the face, then the mirror is a concave mirror.
3. If the image is upright and diminished and it remains upright when the mirror is moved away from the face, then the mirror is a convex mirror.

Average speed FORMULA is DISTANCE upon time so in both case from AtoB and BtoA the distance is same 180KM and time are different so if we TOTAL the time in minutes that is 450min so 180 upon 450 and now we will CONVERT the minutes into hours that is 7h5min and now 180 upon 7h5m now find it

To DISTINGUISH between a plane MIRROR, a convex mirror and a CONCAVE mirror, the given mirror is held near the face and the image is seen.

If the image is upright, of same size as the object and it does not change in size when the mirror is moved, then the mirror is a plane mirror.

If the image is upright, magnified and it becomes INVERTED when the mirror is moved away from the face, then the mirror is a concave mirror.

If the image is upright and diminished and it REMAINS upright when the mirror is moved away from the face, then the mirror is a convex mirror.

59 PERCENT is CORRECT ANSWER

Single bond is PRESENT between TWO HYDROGEN atoms in a hydrogen MOLECULE.

What is your SCIENCE ACTIVITY

U can solve by the following:
1- what is the subject.
2-what r u trying to find.
3-what do u know or what values r given.
4- what equations can you use .


U can UNDERSTAND them by understanding them deeply when they r FIRSTLY explained by UR teacher in ur classroom and then trying ti solve it by URSELF .






hope it will HELP u.......☺☺

Given: A PIECE of copper having an internal cavity weighs 264 g in air and 221 g in WATER. the density of copper is 8.8 g cm-3 what is the volume of the cavity ?

As 

loss in the weight of the piece in the water will refer to the buoyancy ACTING in the upward direction, FB = V ρ g = 43 g

=>  V = 4.39 cm3

Volume of copper piece = 264/8.8 = 30 cm3

Hence,

Volume of the cavity = (30-4.39) cm3 = 25.61 cm3

HEY MATE ...HERE IS UR ANSWER
as we know...
W=m × g
Therefore...
W = 50×9.8
W =490 Kg...

HOPE IT HELPS....
PLZ MARK AS BRAINLIEST IF I HELPED UHH

Two hydrogen atoms COMBINED together to form a hydrogen MOLECULE I.e.H2

If the compass NEEDLE shows some DEFLECTION when it is brough near current CARRYING conductor .Then it's shows that there is a magnetic field AROUND it.

23
please PUT THANKS for the ANSWER bro
please mark as a brainlist answer

When CURRENT FLOWS through a conductor, HEAT energy is generated in the conductor. The heating effect of an electric current depends on three FACTORS: The resistance, R of the conductor. A higher resistance produces more heat.

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Hey mate!

Initial length of WIRE = L

8% of L = 2L/25

New length=(L+2L/25)

=27L/25

.

• •. n =27/25

R' =(n^2)R

R' = (27/25)^2R

R' = 729/625R

#phoenix..

BOHR’s MODEL is APPLICABLE to one-electron SYSTEM only.

In hot summer days we USE earthen pot to DRINK cold water because tiny pores are present in the surface of earthen pot
through which HIGH concentrated molecule of water released by endothermic pressure and LOW concentrated water molecule present in water which is cold.

hope its help you...

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Zero.
The speed of the centre of mass of the system is zero because the particles are initially at REST. As there are no external forces on the system, the centre of mass will CONTINUE to be at rest even though the particles are moving under the ACTION of their internal attraction.

A swimmer BENDS his body to decrease moment of inertia. This is because during a SOMERSAULT, a full rotation is to be performed in a limited amount of time. Thus because moment of inertia is lesser, the body rotates faster and HENCE able to complete the somersault SUCCESSFULLY.

A chimney is a vent for the passage of hot AIR when we are COOKING any SUBSTANCE..

Power is 10 WATT
I SOLVED this and this is the BEST ANSWER

Mass will be the same as PREVIOUS. ACCELERATION due to GRAVITY is ONE sixth of the gravity

1) distance ...m ( metre)
2) displacement ...m
3) velocity ...m/s
4) speed... m/s (metre per second)
5) acceleration... m/s^2 ( metre per second square)
6) momentum...Kg m/s ( kilogram metre per second)
7) frequency...Hz (Hertz)
8) sound....dB (decibel)
9) force...N (Newton)
10) time ....s (second)

These are sI UNITS

The BULB with HIGHER RATING will GLOW BRIGHTER

ANSWER:

t6s and v=60m

Explanation:

i THINK it is CORRECT if it is correct MAKE me BRAINLIEST

1.5percentage ERROR in the MEASUREMENT of MASS