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ANSWER:

F=ma

Force=mass×acceleration...

EXPLANATION:

FOLLOW

Answer:

Explain the correction of the eye defect Hypermetropia. Eye lens can FORM a clear IMAGE on the RETINA when any object is placed beyond near point. To correct the defect of hypermetropia, we need to use a lens which forms an image of an object beyond near point. ... This is possible only when a double convex lens is USED.

An atom is the smallest particle into which an element can be divided without losing its CHEMICAL identity. Atoms consist of a HEAVY central nucleus surrounded by a cloud of negatively CHARGED particles called ELECTRONS. The nucleus CONTAINS positive particles (protons) and electrically neutral particles (neutrons).

Answer: The BENDING of light as it passes from one medium to ANOTHER is called REFRACTION. The angle and WAVELENGTH at which the light enters a substance and the density of that substance determine how much the light is refracted.

ANSWER:

No WEIGH is not INVERSELY PROPORTIONAL to G

As you can SEE that due to extra rain there is flooding in States of MAHARASHTRA, Karnataka, Kerela.

This flooding causes LOSS of life and property as well.

Also continuous rain causes INCONVENIENCE to common PEOPLE.

Electromagnetic or MAGNETIC induction is the production of an electromotive force across an electrical conductor in a changing magnetic field. Michael Faraday is generally CREDITED with the discovery of induction in 1831, and James CLERK MAXWELL mathematically DESCRIBED it as Faraday's law of induction.

.Strip - The thin strip is used to MEASURE the depth of the objects like beakers . Principle of Vernier- The GRADUATIONS on the vernier scale are such that the length of ' n' DIVISIONS on the vernier scale is equal to (n-1) divisions of the MAIN scale.

When the FINAL VELOCITY is EQUIVALENT to the INITIAL velocity

HEYA there

Football is MADE up of RUBBER CALLED PIGSKINS

ANSWER:

ESCAPE VELOCITY = ROOT of 2GM÷R

Answer:

EXPLANATION:

Kingdom Protista consists of UNICELLULAR, eukaryotic ORGANISMS. This kingdom forms a connecting link between kingdom monera and the other kingdoms.

The different types of Protists are:-

1) AUTOTROPHIC or Photosynthetic Organisms

Eg:- Dinoflagellates, Diatoms, Euglenoids

2) Consumer-Decomposer Organisms:-

Eg:- Cellular Slime moulds, Acellular Slime moulds

3) Protozoans:-

Eg:-Zooflagellates, Sarcodines, SPOROZOANS, Ciliates

Answer:

Objects in our room remain as it is unless a force as on it act. If we shake a tree, the FRUITS at rest will fall down. There are various gadget works on the basis of law of motion. ... SIMILARLY air BAGS of the car work on the PRINCIPAL of second law of motion as the breaks are APPLIED in order to prevent the injury.

Explanation:

Examples of protists INCLUDE ALGAE, amoebas, euglena, plasmodium, and slime MOLDS. Protists that are CAPABLE of PHOTOSYNTHESIS include various types of algae, diatoms, dinoflagellates, and euglena. These organisms are often unicellular but can form colonies.

the vectors sum of two vectors of magnitudes 10 UNITS and 15 units can NEVER be? ... 28. P and Q are two vectors; P+Q>or equal to R > or equal go P-Q. 3; 0.

Explanation:

ANSWER:

in a MOVING COIL or magnet, microphone the ENERGY in a sound wave causes diaphragm to vibrate.

HEY THERE!!

Magnetic Field due to a Straight Current Carrying Conductor

The Magnetic field lines AROUND a straight conductor carrying current are concentric circles whose centres lie on the wire. The direction of magnetic field lines can be determined using Right-Hand Thumb RULE.

HOPE THIS HELPS PLS MARK AS BRAINLIEST.....

Gravitational FORCE between two objects is given as

F = GMM / d²

Now, let's say

100% = GMm/d² ......(1)

After masses are doubled and distance halved

F' = G(2M × 2m) / (d/2)²

= 4GMm / (d²/4)

= 16Gmm/d²

From equation (1)

= 16 × 100%

= 1600%

%CHANGE in force = 1600% - 100% = 1500%

OPTIONS which you've provided might be of a different question.

Answer:

After launching aboard the Shuttle Discovery. She performed her first extra-vehicular activity on the eighth day of the STS-116 mission. ... She logged 29 hours and 17 MINUTES in 4 spacewalks. On APRIL 26, 2007 NASA decided to bring Williams back to EARTH on STS-117 mission aboard Atlantis

There are DISSOLVED GASES in most PURIFIED WATER

Answer:

Explanation:

In horizontalprojectile motion time of FLIGHT is determined by the 'y -component' of the initial Velocity ( the velocity with which the object is projected)say :

If a object is projected with a velocity 'u' MAKING an angle B with the horizontal ( x- AXIS) then y component will be 'u SINE b'

That is; T= 2 usine b/g

Yes

Explanation:

because on the MOUNTAIN pressure GOES down as compare to SEA LEVEL.

ANSWER:

by RADIO WAVES

Explanation:

they will TRANSMIT radio waves to the EARTH

Answer:

For any orbit we must have the centripetal force equal to the gravitational force. So this gives:

2=2

where in this case is EARTH’s mass, the satellite mass, the satellite SPEED, and the satellite distance from the Earth’s CENTRE. Hence the kinetic energy of the satellite is:

=122=22=22=2

Now the kinetic energy needed to ESCAPE gravity is that needed to cancel the satellite’s gravitational POTENTIAL energy with respect to Earth which is;

=−

Hence we can see that the satellite requires a kinetic energy of 2, ie: twice its existing orbital kinetic energy

Explanation:

Gold can be used EXCELLENTLY as it readily conducts electricity and it is very easy for a person to draw it and FIT into different shapes LIKE on synthesizers, mobile phones, computers etc.

It is very easy to beat it and further transform into very thin sheets which increases its utility value even further. Further to this, it can even be melted and cast into different shapes and the most important thing out of all this is that, it does not lose any color when these activities are performed on it.

This is the reason why blacksmiths as well as other people PREFER using this metal over anything else for all purposes.

ANSWER:

A thermometer works on the principle that solids and LIQUIDS EXPAND on HEATING. As the temperature rises, mercury expands causing it to move upwards and depict the temperature. As the temperature of the bulb rises, the liquid expands up the TUBE through the constriction.

ANSWER:

when the body is at REST POSITION then the body is said to be in rest. when the body changes its position with respect to time then the body is said to be in motion.

Answer:

700%

Explanation:

The MOMENTUM is increased by 100 % which MEANS it BECOMES

P=2mv

KE₁ = mv²/2

KE₂ = P²/2m

     =(2mv)²/2m

     =4mv²

KE₁:KE₂ = mv²/2 : 4mv²

             = 1 : 8

KE increases by 7 times or by 700 % [ as change in KE = KE₂-KE₁ ]

hope it helps and please mark as BRAINLIEST:)

.

Answer:

When 7 colours PASS through glass prism, these 7 colours GET combined and produces a white colour..

*HOPE it will help U

EXPLANATION:

there are 22+X CHROMOSOMES in a SPERM

and 22+X or 22+y in EGG

Answer:40/3up and 5 down

Explanation:

Answer:

Stronger

Explanation:

Because The greater the DISTANCE the LESSER the force of attraction. So if the masses of the two body increased their GRAVITATIONAL force of attraction BECOMES stronger and their distance also makes the gravitational force stronger

The temperature of GAS is 286.5°C

Explanation:

• Given data

• Since volume is constant. From formula of Gay-Lussac's LAW

       On PUTTING RESPECTIVE value in above equation, we GET

      On solving, we get

FRICTIONAL FORCE is a NON CONSERVATIVE FORCES

Acc. To me,

Answer is a) 60 km/h  b) 0

---------------------------------------------

A) s1(SPEED of going)=40km/h

s2(speed of returning)=120km/h

d=x km

----------------------------------------------------

Here i derive formula if you don't want DERIVATION then USE formula that is in  eq 3

Avg speed =total distance/total time

Total d=d+d(for going and returning) and d is same

total time=t1+t2(for going and returning)

You don't KNOW time so find out by

s=d/t

For t1(going)

s=s1,d=d,t=t1 so

t1=d/s1---------1

Here for t2(returning)

s=s2,d=d,t=t2

t2=d/s2------------2

Put it and find

avg S=2d/t1+t2

avg S=2*s1*s2/s1+s2------3

-----------------------------------------------------------------

Put s1 and s2 in equation 3 and find

Avg S=60 km/h

B) Average velecity =Total displacement /total time

Here cyclist GO an return to same place so displacement is zero

If you put displacement =0

then velocity =0

Answer:

0.00650935720098

Explanation:

0.04/6.145

KELVIN INVERSE K-¹ is the SI UNIT

Answer:

NEWTON's rings is a phenomenon in which an interference pattern is CREATED by the reflection of light between TWO surfaces—a spherical surface and an adjacent touching flat surface. It is named for Isaac Newton, who investigated the effect in his 1704 treatise Opticks.This RESULTS in a pattern of concentric bright and dark rings, interference fringes. Newton's rings seen in two plano-convex lenses with their flat surfaces in contact. ... In white light, the rings are rainbow-colored, because the different wavelengths of each color INTERFERE at different locations.

W=F×S

15J=60S

S=1/4 m

I HOPE it HELPS U

Answer:

The SIZE of IMAGE is -6cm BEYOND the MIRROR MEANS 6cm

ANSWER:

no but you have to do all the EXAMPLES in the BOOK and SOLVE them again and again

Answer:60km/hr

Explanation:

VAVG = (L1+L2+........+LN)/(L1/V1+L2/V2+........+Ln/Vn)

48=200/(100/40+100/v)

48(2.5+100/v)=200

4800/v=200-120=80

v=4800/80=60

it's refractive INDEX is very high so it's critical ANGLE is very LOW so the easily TOTAL internal reflection happens . It is actually kind of refraction with angle more than NINTY degree

ANSWER:

The luggage is TIED to the BUS so that it won't FALL when applied brake due to inertia of its motion prior to APPLICATION of brakes.

Answer:

▪︎First, the natural world allows no “privileged” frames of reference. As long as an object is moving in a straight line at a constant speed (that is, with no acceleration), the laws of physics are the same for everyone. It’s a BIT like when you look out a train window and see an ADJACENT train appear to move — but is it moving, or are you? It can be hard to tell. Einstein recognized that if the motion is perfectly uniform, it's literally impossible to tell — and identified this as a central PRINCIPLE of physics.

▪︎Second, light travels at an unvarying speed of 186,000 miles a second. No

matter how fast an observer is moving or how fast a light-emitting object is moving, a measurement of the speed of light always YIELDS the same result.

✨✔✨✔

ANSWER:

GRAVITATION between EARTH and the OBJECT is 9.8m/s SQUARE

ANSWER:

Because of FORCE of GRAVITY...

HOPE it HELPS..

ANSWER:

6 cm/s^2

Explanation:

• according to the equations of motion,. v=u-at
• but here the object is going in DOWNWARD DIRECTION so ACCELERATION will be negative
• so the equation will be v=u+at
• here the object STARTS it motion so u=0
• so v=at
• so v= 2(3)=6cm/s^2