Recently Active Questions

A uniform spherical shell of mass M rotates about vertical axis on frictionless bearings.A light cord passes around the equator of the shell over a masssless pulley and attached to block(mass m) which is otherwise free to fal ...

A pendulum bob (mass m)at its mean positon is given velocity v= 7gl/2 .Calculate the height at which it leaves circular path.. Just give the answer first,,,I want to confirm mine... ...

m1=0.5kg m2=10kg M=8kg.a=10cm,b=15cm.If moment of inertia of spool I=0.1 kg m^2 and friction is sufficient to prevent sliding, calculate accelrations of A and B. *Image* ...

what is meant by the term `FORWARD ENGLISH` with regard to rotation topic. ...

if i click the submit button in the test is not getting submitted.please help ...

Find distance of centre of mass of a uniform plate having inner and outer boundaries as a and b........ *Image* ...

Inside a smooth spherical shell of radius R a ball of same mass is released from shown posititon.Find distance travelled by centre of shell on hrz floor when ball comes to lowest point on shell *Image* ...

Block A of mass m rests on plank of mass 3m which is free to slide on smooth horz surface.μ b/w plank and block=0.2 .If horz force applied to plank, find accelration of block relative to plank and ground. *Image* ...

find y *Image* ...

What is the pH of water at 0ºC ? 7 7.69 6.48 undefined may b a very Stupid question....:P ...

The tail of a comet is directed away from the sun bcoz: (a) as the comet rotates around the sun the lighter mass of the comet is pushed away due to centrifugal force. (b) AS the comet rotates the lighter mass of the comet is ...

The block of mass m is stationary wrt block of mass 2m.Calcualte min μ between m and 2m *Image* ...

limx→4f(x)-5/x-2=1 wat is f(x) ...

A lead sorage cell is discharged which causes the H2SO4 to change from a concentration of 34.5% [density=1.26 g/ml] to one of 27 weight%.The original volume of electrolyte is 1 L.How many faraday`s have been left at the a ...

Two bodies of mass m and 4m are attached with string.Body of mass m length l(String) is executing oscillation of amplitude θ while other is at rest.The min coeff of friction between 4m and ground should be..... *Image* ...

find product *Image* ...

i m very weak in topics probability,permutation can anybody give important topics or pitfalls that i had to remembered while solving problems in these chapters ...

two blocks A and B of mass m and 2m are conncected by a massless spring of force constant k.They are placed on smooth horz. plane.Spring is stretched by an amount x and then released.Calculate relative velocities of blocks wh ...

A carom board (4ftX4ft)has the queen at the centre. The queen. hit by the striker moves to the front edge, rebounds and goes in the hole behind the striking line. Find the magnitude of displacement of queen (a)from the centre ...

Does hbo has to do something to do with sterichinderance?? ...

A point source of a light is located some distance below surface of a liquid `μ`.Find the fraction of the light that emerges into air assuming an average of 80% transmission where it occurs. ...

Find the average angular speed of the sun in degree per hour for a fish under water.[critical angle=48 degrees].Assume 12-hour day and at noon time.light would fall normally on the surface of the water. what is the angula ...

I am just giving these questions to compensate for the question of the day which was not given from many days.i hope they meet the standards sorry its for DECEMBER 27 I MISPRINTED IT. Two landing stages M and N are served by ...

if α, β, γ, δ are four complex numbers such that γ/δ is real and αδ - βγ ≠0, then z = (α+βt)/(γ+δt), tεR represents a a) circle b)parabola c)ellipse d) straight line e) hyperbola. Please answer this quest ...

a) *Image* in above figure C1-C2 bond length is shorter than C2-C3 bond.how?? b) tetrachloroethylene does not decolourize bromine in CCl4 c) what is the action of B2H6/THF ; CH3COOH on 1-methylcyclohexene d) why a car ...

Find the area bounded by r=a(1+cosθ),0<θ<2π. ...

if a,b,c are in A.P p,q,r are in H.P and ap,bq,cr are in G.P THEN PR+RP IS (1) AC-CA (2) AC+CA (3) BQ+QB (4) BQ-QB ...

IF Kp for the equilibrium , (s) CuSO4.5H2O <---------> CuSO4.3H2O + H20 is 1.086 * 10-4 atm2 at 25°C , then the efflorescent nature of CuSO4.5H2O can be noticed when vapour pressure of ...

A lead storage cell when charged causes the formayion of H2SO4 and its cocentration is increased.In a battery having 1L electrolyte, contains 27by weight of H2S04[density=1.13g/ml].On charging ,the sulphuric acid cocentra ...

What is the meaning of Apogee and Perigee??? ...