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The vacuum formed when a LONG tube, CLOSED at one end and filled with MERCURY, is inverted into a mercury reservoir so that the open end of the tube is below the surface of the mercury. It is named after EVANGELIST Torricelli, who was RESPONSIBLE for the design of the mercury barometer

sound is a VIBRATION that propagates as an acoustic wave , through a transmission medium such as gas, liquid or SOLID . Explanation:in HUMAN physiology sound is a reception of such waves and their perception by the BRAIN. PLZ follow me

Ask googleExplanation:Please mark it as BRAINLIEST ANSWER I THOUGHT it would be helpful for you

Because TUNGSTEN has property that it burns with slight energy or through PASSING a low current and gives out high amount of energyIf you like PLEASE MARK it as brainliest

the energy required to JUMP the electron from ground state to the NTH BOHR's ORBIT is called as exited state.given that,E=-eVEex=E2-E=-eV/4 +eV=3eV/4 ....this is your ans .(as we know that En=E/n.sq.therefore E2=-eV/4)

tion:NUCLEAR fusion in the sun products the SUNLIGHT we see on earth is like brahmastra this is the ANSWER for your question OK FOLLOW me mark my answer as brainlest answer

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re (British SPELLING) or diopter (American spelling) is a unit of measurement of the optical power of a lens or CURVED mirror, which is equal to the RECIPROCAL of the focal length measured in metres. (1 dioptre = 1 m−1.) It is thus a unit of reciprocal length.

tion:The ANGLE of REFLECTION is equal to angle of incidence in all cases. 2. When the pipe through which the sound is HEARD, is lifted vertically the sound of the table-clock is EITHER weakened or diminishes completely. It shows that the reflected ray lies in the same plane of incidence

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Joule is the unit for energyDimension FORMULA for Joule is [M¹L²T⁻²]Let n1(joule)=N2(erg)n1(M₁¹L₁²T₁⁻²]=n2[M₂¹L₂²T₂⁻²]n2=n1(M₁¹L₁²T₁⁻²] /M₂¹L₂²T₂⁻²]=n1x(M1/M2)¹x(L1/L2)²x(T1/T2)⁻²=1x(1kg/gm)¹x(1m/1cm)²x(1s/1s)⁻²=1x(1000g/gm)X(100cm/1cm)²x(1s/1s)⁻²=10⁷ Therefore n1(joule)=n2(erg)∴1 Joule=10⁷ergRead more on Brainly.in - brainly.in/question/322075#readmore

CNG is compressed NATURAL GAS and, LPG is liquefied petroleum gas. please mark it as BRAINLIEST and also CLICK on a SMALL heart and follow me

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radius of circle, R = 5 m☛ speed of body, s = 10 m/sTo Find:☛ distance covered☛ displacement when the body is at HALF of its journeySolution:Now,==> Distance Covered = CIRCUMFERENCE of the circle / 2 ==> d = 2πr / 2==> d = 5π mIf we were given, π = 3.14Then,==> Distance covered = 5 × 3.14==> Distance covered will be ≈ 15.7 mAlso,Displacement = Shortest distance between the initial point and final the final pointBody at half of its journey = Half of circumference Then, Displacement will be :==> Displacement = Diameter of circle==> Displacement = 2 × radius==> Displacement = 10 m

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I hope it will helpful to you and plss thankful to me plzzzzExplanation::i As the RAY is SUFFERING minimum deviation in an equilateral glass prism soi1 = i2 ∴ i2 = 48o ii If the angle of incidence is CHANGED TOA 30o the angle of deviation will be more than 36o.b 60o the angle of deviation will be more than 36o.

Magnification:It is the action of magnifying something.It is the RATIO of the image distance(v) to the object distance(u).It is given by -v/u.Given:We have been given that the object distance(u) of an object is 3CM and its image distance(v) is 12cm.To Find:We need to find the magnification. Solution:We KNOW that magnification is given by:-v/u. Substituting the given values we have,magnification(m) = -v/u= -12/3= -4As the magnification is -4 which is NEGATIVE, this means that the image is inverted.Hence the magnification is -4.

u want it to be unique and special and I have to STAY with me 7 cm find it on my PHONE and I will snd in morning or night at WORK right to say to him and the distance from work to hard and fast as he can come up here to help her to go HOME to you

Violent motion is caused by external forces applied to the object. ... 3.3 Galileo showed that OBJECTS of different masses fell at the same rate and that once an object is MOVING, no FORCE is needed to MAINTAIN motion.HOPE IT HELPS YOUMARK AS THE BRAINLIEST IF YOU LIKE

If a coil is rotated in a magnetic field, a current will be induced in the coil. The strength of this induced current DEPENDS upon magnetic FLUX. Magnetic flux is maximum when the plane of the coil is parallel to the magnetic field. Magnetic flux is minimum when the plane of the coil is perpendicular to the magnetic field. Thus, when a coil rotates in a magnetic field, the induced current in it continuously changes from maximum to minimum value and from minimum to maximum value and so on. The armature is ARRANGED so that it can rotate freely in the magnetic field. When armature turns then due to change in magnetic flux an induced e.m.f is produced EXPLANATION:please mark as brainlist

the radius of a PLATINUM NUCLEUS(Z=78) if an alpha particle of energy 7.8 MEV strikes the nucleus and SUFFERS a DEFLECTION of 180°Explanation:the radius of a platinum nucleus(Z=78) if an alpha particle of energy 7.8 MeV strikes the nucleus and suffers a deflection of 180°Ok

this number is not the only TIME the pant has a high level and tightening the BRAKES on insta to do 6666inches and bike rides and other parts are more likely than 666666inches and tightening the engine on the engine to the engine on a LOT more than a few more miles and bike to 6th gear on insta and tightening up to a normal level with 3d glasses in a car and bike rides in a car with 3d or a lot more PEOPLE who have been in

A concave mirror, a mirror holder, a white screen fixed on a stand or a white wall, an object (CANDLE) and a metre scale.Procedure - Fix concave mirror to mirror holder and place it on table.Turn the face of mirror TOWARDS a distant object (a candle in this case). The selected object should be visible with your naked eyes.Adjust the POSITION of the screen in such a way that it forms a clear image of the candle on the screen.Measure the distance between the concave mirror and the screen with a metre scale. Record your observations in observation table. Repeat the experiment two or three times and FIND the mean value of the focal LENGTH.

to MADE the aeroplaneExplanation:it will HELP you

: Linear momentum angular momentum and kinetic ENERGY are conserved in the PROCESS. From conservation of linear momentum `Mv'=mv` ltbr. Or `v'=(m)/(M)v` ..(i) Conservation of angular momentum gives, `mvd=sqrt((Ml^(2))/(12))omega` or `omega=((12mvd)/(Ml^(2)))` ...(ii) Collision is elastic, HENCE `e=1` or relative speed of approach `=` relative speed of separation `thereforev=v'+domega` Subsitituting the values, we have `v=(m)/(M)v+(12mvd^(2))/(Ml^(2))` Solving it we get `m=(Ml^(2))/(12d^(2)+l^(2))` plz give brainliest..Explanation:

a. 2HNO3 + Ca(OH)2- Ca(NO3)2 +2 H2Ob. 2NaOH + H2SO4-Na2SO4 + 2H2Oc. NaCl + AGNO3 → AgCl + NANO3(already balanced)4. BaCl2 + H2SO4 → BASO4 + 2HCIExplanation:just see the no of atoms of each element on both sides and start by making each atom of a PARTICULAR element same on the LHS and RHS.remember taking TOGETHER a capital letter and a small letter together and capital letters separate.

CaCO3+H2SO4----CaSO4+CO2+H2OExplanation:When calcium CARBONATE reacts with dil. sulphuric acid,it gives a SULPHATE salt of element calcium with water and carbon DI oxide.....This reaction u can take for the activity......For writing activity ...plz take help of any prescribed BOOK.... I think this answer help u to INCREASE your writing capacity and helpful for u

xugystdustt cucdsufysrfit xtsuhudrkfo B hFuhir6h cyfmfgstslgtw. xujgudyfifs cdyfi cjftsgdrsg vifydhvudrsn fuddy-duddy gudyfuftsugyd cufudtfkfydhfydygog fufufugtfut fydufysyfur xydudihudyfyeug6dyd5 cydigtdjjcrshdwigysy. kgufydhsyvyrkdrd dtdjduhiccsboudjfu xgdyfy ff7d6f you tygydfFzgsragdtstdts. u8ftststs5e5r6wrdusrsudratd4q3dtarxtatxssd6d5stjsgfhst gigg8itv7vt7r7btt. is that 7r66r76666d6r6r6 ufydrshsyuExplanation:cydtstsrd5s55

nomenon of total INTERNAL REFLECTION of light is used in many optical instruments LIKE telescopes, MICROSCOPES, BINOCULARS, spectroscopes, periscopes etc. The brilliance of a diamond is due to total internal reflection. Optical fibre works on the principle of total internal reflection.

Initial voltage=200Vq=C.Vq= dϵ 0 .A V (1)When dielectric is inserted q remains CONSTANT and V decreases by k.q= d ′ +t− KT ϵ 0 A V (2)From EQUATION 1 and 2 we have,d=d ′ +t− kt d−d ′ =1.6mm=2− k2 solving,k=5Explanation:HEY shilka mark me as brainliest

e SOUND of thunder reaches after lighting , because light travels faster than sound (thunder is sound and LIGHTNING is light ) (EXTRA information: Speed of light is 3,00,000 m/s where speed of sound is 346 m/s ) Hope this helps

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tion:HEAT FLOW from boiling water to matchstick BOLING waterheat flows from higher to LOWER

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A rider must lean into a turn to prevent tipping over in the other direction. To remain upright while turning to the left, there are THREE forces acting on the rider and bicycle.The weight of the rider and bicycle, W, acts vertically downward from their center of gravity. The normal force, N, of the ROAD acts vertically upward from a point below the center of gravity. And the frictional force, F, of the road acts horizontally to the left. Turning on a bike requires a net force called centripetal force. The frictional force PROVIDES the centripetal force necessary to turn the cyclist to the left. But the frictional force also produces a clockwise TORQUE that will cause the rider and bicycle to tip clockwise to the right. In the sketch on the right the cyclist is leaning in the direction of turn. Now the normal force of the road does not act through the center of gravity. It produces a counterclockwise torque that cancels out the clockwise torque of the frictional force. THUS there is no tendency for the cyclist to tip to the right.

6.5 KM/hrExplanation:First CONVERT the MINS into hrs1 MINUTE = 1/60 hrs1800 mins to hrs = 1800/60                             =  30 hrsDistance given = 195 kmthus, Speed = D/T(where d = 195 km and t = 30 hrs)THUS, speed = 195km / 30hrs                      = 6.5 km/hr