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Hi jogendra , aapke question ka answer yaha hai........

The sound traveled from the place the person stood, to the cliff and then rebounded back to the person , so the person heard the resound/echo.

So the sound traveled twice the distance between him/her and the cliff.

Distance between cliff and person = 346 m/sec * 5 seconds / 2 = 865 meters

Total bill will be1000 watt = 1 unitso for 150000 unit150*4600 rupees

since zener diode here is in reverse biased form , so maximum potential around 10kΩ is the sum of potential of both the zener diode = 5+5 = 10v

now current through 10kΩ = v/R = 10/10kΩ = 1mA.

Heat produced in the circuit is inversely proportional to the resistanceR.

LetRSbe the equivalent resistances of the wires if connected in series andRPbe the equivalent resistances of the wires if connected in parallel

ThenRS=R+R=2R

And 1/RP= 1/R +1/R

1/RP= 2/R

OrRP=R/2

Now the ratio of heat produced is given by

Hs/Hp=V^2/Rs*t/V^2/Rp*thenceHs/Hp=1/4

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the unit of electric flux density is C m^-2

static electric fields are conservative in nature.

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Counting in twos write from 400 to 410

Dear Student ,Here in this case the work done by lifting the weight 220 kg through 1.5 m is equal to the change in potential energy .So the work done = change n potential energy = mgh = 220 x 10 x 1.5 = 3300 JBut the work done in holding the weight at the same height for two minutes is zero .

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Work done by the porter on the luggage = force×displacement =mgh= 15 kg x (9.8 m/s2) x 1.5 m= 220.5 J

1)v=u+at2)v^2 =u^2 +2as3)s=ut+(1/2)at^2

where v:final velocityu:initial velocitya:uniform acceleration t:time takens:distance travelled

Relationship between kinetic energy and momentum is like:-

k.E= P²/ m

p= (momentum)

m= (mass)

by keeping mass constant we have:-

k.E= p²

k.E= (3)²

K.E= 9 times☺

Relationship between kinetic energy and momentum is like:-

k.E= P²/ m

p= (momentum)

m= (mass)

by keeping mass constant we have:-

k.E= p²

k.E= (3)²

K.E= 9 timesAnswerOption- D

p = (2*kinetic energy*m)^0.5=> (p2/p1)^2 = k2/k1=> (2/1)^2 = k2/k1=> k2/k1 = 4/1Here, k represents Kinetic energy and p represents momentum.Hence, with doubling of momentum, the kinetic energy becomes four times.

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IThe instantaneous acceleration pointing towards the center of the circle is called centripetal acceleration. It is denoted by 'a₍r₎'It's magnitude is given asa₍r₎ = v²/rwhere 'r' is the radius of curvature.The tangential component cause a change in its speed and it's magnitude is given asa₍t₎ = dv/dt = a m/s²Hence, tangential acceleration is,a₍t₎ = a m/s²Now,Resultant acceleration = a² = a₍r₎² + a₍t₎²Putting the values , we get:Resultant acceleration = a² = (v²/r)² + a²Resultant acceleration = a² = v⁴/r² + a²Resultant acceleration = a = √ (v⁴/r² + a²)which is the required answer.

the displacement vector will be

B - A =(-2-0)i +(8-4)j+(-4+2)k = -2i+4j-2k operation A

N = Number of rotation per minute

N = 100 per minute

so the frequency F = N/60 per second =100/60 per second.

Thus the angular velocity, W = 2πF

so W = 2 x 3.14 x (100/60) = 10.466 radian per second

T = mV²/r

here r = l , and v = √2g

so, T = m*2g/l = 2mg/l.

check my other questions plus Bro plsss

namanpreet bhai plz bta dena ye shi h ya galat plz

W=v(perpendicular)/r ( where r is the distance between the position of the particle and the point about which the angular velocity is to be calculated)

thus,W=vcos/r {m using '' for theta}

From the triangle ABC,sin=b/root of (a^2+b^2)

where = 90-,

Thus sin(90-)= cos,

Therefore, cos=b/root of (a^2+b^2).

So,W={v*b/root of (a^2+b^2)}/root of(a^2+b^2).

which is equal to vb/a^2+b^2.

Thus angular velocity = vb/a^2+b^2.

shi h bhai

shukriya bhai apka

aur iska answer v/(√a^2+b^2) matlab 1st option hai kya answer bhai?

3rd h

iska 4 th h?

3rd

The component of V perpendicular to the line joining O and V , will give the angular velocity

and angle can be found out by cos∅ = b/(√a²+b²)and R = √a²+b²

so, angular velocity is Vcos∅/r = vb/(√a²+b²)²=vb/a²+b².

option 3

copy paste??

Average acceleration is change in velocity by either change in its magnitude or change in its direction. But here for a uniform circular motion magnitude being constant (speed) direction changes which causes change in acceleration and by definition from NCERT acceleration is change in velocity during the course of overall interval. Therefore following ans should be the quick answer for the given question : Here v1 and v2 are two velocities say at point P and Q diametrically opposite points.

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a) A dimensionally correct equation may be correct.(b) A dimensionally correct equation may be incorrect.(d) A dimensionally incorrect equation may be incorrect.

It is not possible that a dimensionally incorrect equation is correct. All the other situations are possible.

(a) A dimensionally correct equation may be correct.(b) A dimensionally correct equation may be incorrect.(d) A dimensionally incorrect equation may be incorrect.

It is not possible that a dimensionally incorrect equation is correct. All the other situations are possible.

(a) A dimensionally correct equation may be correct.(b) A dimensionally correct equation may be incorrect.(d) A dimensionally incorrect equation may be incorrect.

It is not possible that a dimensionally incorrect equation is correct. All the other situations are possible.

Equation Area× velocity = constant is called as Bernoulli's equation.

Perfume is a mixture of fragrantessential oilsoraroma compounds,fixatives andsolvents, used to give the human body, animals, food, objects, and living-spaces an agreeablescent.

Natural ingredients—flowers, grasses, spices, fruit, wood, roots, resins, balsams, leaves, gums, and animal secretions—as well as resources like alcohol, petrochemicals, coal, and coal tars are used in the manufacture of perfumes.

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Voltmeter = 12*(100/300)= 4 volt 4 volt का पठन करेगा

what is the meaning of the figix

please give me the answer

Its focal length will be 10cm and it will act as a concave lens