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1. Material is the correct answer

a) material is the correct answer

The correct answer is Material

1. material is the correct answer

1) material 2) 5√2A 3).c is correct answer

answer 1 is correct i hope it help you

material is the best answer for the question

material is the correct ans

material is the right answer

Noise is mostly generated in channel.

Gases responsible for green house gas

carbon dioxide, methane, nitrous oxide, chlrofluorocarbons

Processes based on principle of electrolysisElectroplatingElectrorefining

thanksgiving

Methyline blue is correct answer

nucleaus:janus green-Bis the right answer.

nucleus:janus green-Bis the right answer

not his answer

density = mass /volume

relative density is the specific gravity

specific gravity = density of a substance / density of the reference substance

reference substances are water and air, so the density of air =1.225 Kg/m^3 and density of water =1000 Kg/m^3.

the term relative density can be defined as the ratio between the density of substance to that of water at a particular temperature. where as, density is just the ratio of total mass of the substance to total volume of the substance.

If answers are in other units send options

thanks for raising the doubt with us

Density = Mass / Volume= (40.6 - 21.8) / 20= 0.94 g/cm^3

Density of liquid A is 0.94g/cm^3

Volume of the bottle, V=20 mlMass of bottle,m= 21.8g.

When filled with liquid the bottle weighs 40.6g

Therefore, Mass of liquid in the bottle, m= 40.6 – 21.8 = 18.8g

Density of liquid = m/ V = 18.8/20

=>0.94 g/ml

The mass of empty bottle =21.8gwhen filled complete with water =41.8g =21.8 -41.8g =20 gthe mass of water =20 gthe volume of the water in cubic cm =20 mlwhen filled complete with water =40.6gthe empty bottle =21.8g when filled with water =40.6-21.8g =18.8gDensity of liquid =m÷v=18.8 ÷20 g =0.94

The mass of empty bottle =21.8gwhen filled complete with water =41.8g =21.8 -41.8g =20 gthe mass of water =20 gthe volume of the water in cubic cm =20 mlwhen filled complete with water =40.6gthe empty bottle =21.8g when filled with water =40.6-21.8g =18.8gDensity of liquid =m÷v=18.8 ÷20 g =0.94

T be the tension in string. for equilibrium 2Tcoso = mg string will be straight if 0 = 90 degrees. and cos0 = 0 T= mg/2 coso . t=infinity

The initial velocity and angle of projection decides the range as well as the height it reaches.

Let V be the velocity and A be the angle, then the velocity is split into horizontal and vertical components as VcosA and VsinA.

This problem is solved easily if we understand this.

That the vertical component decreases due to gravity and reaches zero at the top, then reverses and reaches its initial value when the projectile hits ground.

And that the horizontal component remains constant neglecting wind.

So the range will be

time taken for the projectile to go to the top and reach ground again

Now we have to use velocity acceleration formula

v=u+at

If t is the time taken from start to reach the top and g is the gravity constant

then

0=VsinA-gt

t=VsinA/g

Total time = 2 VsinA/g

So range= 2 VsinA/g. VcosA

you have nice thinking capability

the answer to this question is 200 J

the work done is given by F.S

and force is = mg = 10*10 = 100N so, work done = 10*10*2 = 200J

Earthquakes can not be predicted.

that Questions Anwar is earthquake cannot be predicted

The earthquakes can't be predicted

Anwar is earthquake cannot be Predicted /stopped or prevented by

They can't be predicted

Earthquake cannot be predicted

earthquakes cannot be predicted

actually earthquake are not predicted and often cause huge damage

the question you have posted is incomplete please post the complete question

let the voltage at the centre be V

and current in 10Ω = i1 , 20Ω = i2 and 30Ω = i3

let i1 = i2+i3

so, according to Kirchoff rules

=> (10-v)/10 = (v-15)/30 + (v-6)/20=> 10-v = v/3 -5 +v/2 -3=> 11v/6 = 18=> v = 108/11

so, Ii = (10-108/11)/10 = 2/110 = 1/55 A

According to the question present age of girl = 2xthat of her mother = 5xafter 5 years age of girl = 5yand that if mother = 11ynow According to the given condition, 2x + 5 = 5y -2x + 5y = 5 ... (i) and 5x + 5 = 11y -5x + 11y = 5 ... (ii) Multiplying eq (i) by 5 and (ii) by 2 and subtracting (i) from (ii) we get, -3y = -15y= 5 x = 10Hence present age of girl = 2x10 = 20and that of mother = 5x10 = 50Age of girl 10 years ago = 20 -10 =10Age of mother 10 years ago = 50 -10 =40

y=5 x =10 correct answer following

thanks u very much

V = velocity has dimension of LT-¹

and pressure = F/A has dimension of ML-¹T-²

and density = M/V has dimension of ML-³

so, pressure/density = L²T-²and √(pressure/density) = LT-¹

which is same as Velocity , hence ✓

Concave Mirror

Concave mirrors are commonly used in torches, search-lights and vehicles headlights to get powerful parallel beams of light.

They are often used as shaving mirrors to see a larger image of the face. The dentists use concave mirrors to see large images of the teeth of patients.

Large concave mirrors are used to concentrate sunlight to produce heat in solar furnaces.

Convex Mirror

Convex mirrors are commonly used as rear-view (wing) mirrors in vehicles.

Convex mirrors are preferred because they always give an erect, though diminished, image. Also, they have a wider field of view as they are curved. Thus, convex mirrors enable the driver to view much larger area than would be possible with a plane mirror.

Mirrorsare mostly used for personal grooming purposes, architectural design, cameras, lasers, telescopes and various industrial machineries. There are also some non-optical objects where theuseof electromagnetic radiation is used and designed for other wavelengths

mirror can help you to see the objects behind you while driving or riding..

Mirrorsare mostly used for personal grooming purposes, architectural design, cameras, lasers, telescopes and various industrial machineries. There are also some non-optical objects where theuseof electromagnetic radiation is used and designed for other wavelengths

U= 50m/sg= -10m/s^2

The velocity at the highest point will be 0 m/sThus v=0

Height can be calculated by

2gs=v^2-u^2-20s= -2500s= 125m

Time :v= u+gt0=50-10t-50=-10tt= 5sec

tq

Power = Potential²/Resistance=> 100= V²/4=> V² = 400=> V = 20 VPlease hit the like button if this helped you

A two-stepprocedure in whichsteelis refined by one process(usually the Bessemer process) and finished by another process(usually open-hearth or electric-furnace). Also known as duplexing;duplexpractice.