
How 2 find COM of isoceles right angled triangle using integration??pleez reply ...

The figure shows one end of a string pulled down by a constant velocitty V.Assuming the pulleys to be massless and smooth,prove that the tension in string AB is mg(1+b2v2/4gx3) *Image* ...

Please xplain the mechanism of interference through thin films. ...

There are many gud problems in it but many of them are solved by many just like maths... so solve the following question frm it and see urself. Q.A bent tube is lowered into water stream just as shown in fig water has velocit ...

How could you make a lens to focus sound waves?consider waves in air and water ...

A thin transparent plastic bag has the shape of a converging lens when inflated with air.How does it behave optically when placed in water? ...

An empty dish gets hot in an ordinary oven whereas in microwave it does not.Why? ...

find the time taken by cylinder to reach O from A . ( g=10ms2) OA =5m. *Image* unable to proceed. ...

The balls, having linear momenta p1 = pˆi and p2 = −pˆi , undergo a collision in free space. There is no external force acting on the balls. Let p'1 and p'2 be their final momenta. The following option(s) ...

Why is everyone crying about the experiment being conducted on the big bang theory? is it why media is shouting and crying.. i think this is all superstition people.. what do you think? ...

*Image* Find the time period of oscillation of the pulley in the system shown. The moment of inertia of the pulley about its axis is I & the string does not slip over the pulley. The string & the springs are light. Pls give t ...

u hve a wedge and u place a block over it at the top.....the block will move down due to the incline of the wedge....now, will the wedge move back as the block comes down..or it will stay at its place....... ***normal is just ...

Two bodies A and B of masses m and 2m respectively are placed on smooth floor.They are connected by a light spring of stiffness k.A third body C of mass m moves with velocity v along line joining A and B collides elastically ...

*Image* The opening near the bottom of the vessel shown in figure has an area A.A disk is held against the opening to keep the liquid from running out.Let F1 be the net force applied on the disc applied by liqiud an air in th ...

In aerial mapping a camera uses a lens with a 100cm focal lenght.Find the height at which the airplane must fly,so that the photogrpah of a 1 km long strip on the ground fits excatly on the 20 cm long flimstrip of the camera. ...

A disc of radius R is cut from a disc of radius 2R such that the edge of smaller disc touches the edge of original disc. What will be the centre of mass of left plate. ...

a particle of mass m is moving in a circular path of constant radius r such that its centripetal acceleration 'a' is varying with time as a=k2rt2, whr k is a constant. the power delivered to the particle by the fo ...

a wind power generator converts wind energy to electrical energy. assume that generator converts a fixed fraction of wind energy intercepted by its blades into electrical energy. for wind speed v, the electrical power output ...

Firstly this not a lengthy question can be solved in 23 steps. Two towers of Height H and 2H separated by √3H what is the min velocity required to throw the ball from side of short tower so that it just touches small tower ...

A charged particle have a charge q enters a region in which there is a friction force which is proportional to the speed of particle. THe constant of proportionality of friction force is b. The particle stops traveling a dist ...

a glass tube with mercury trapped in b/w. length of glass tube 100 cm lenthg of mercury in b/w glass tube of length 20 cm(on both side equal air columns at normal condns) take density of mercury =ρ find : a) ht of air co ...

a long round conductor of cross sectional area A is made of material whose resistivity depends on radial distance r from the axis of conductor as p=a/r^2 , a is contant What is total resistance per unit length of conductor an ...

a balloon rises from ground with an accerlation of 1.25m/s2. after 8 s a stone is relased 4rm the baloon.the stone will: a)cover a distance of 40m b)have a displacement of 50m c)reach the ground in 4 sec d)begin to move down ...

a particle has an intial velocity of 9m/s due to east and a const. accerlation of 2m/s2. due to west. the distance coverd by the particle in the 5th second of itz motion???? a)0 b)0.5m c)2m d)none of these ...

Can any body tell me how crucial is the experimental vis a vis physics paper as far as total weightage is concerned ...

A side wall of a wide open tank is provided with a narrowing(Linearly)tube through which water comes out. The crosssectional area decreases from S1 to s2 the water level in the tank is h meter high than tube. Neglecting visc ...

wotz d moment of inertiaof a square plate : A)alongs itz diameter? b)axis perpendicular n passing through the center?????? ...

hey cud u plzz slove ques. 63 part (c) and ques 64.... of rotational meachnaics...of hc verma...pg 199......... m sooo sry bt din feel lyk writing the ques as itz tooo big.... ...

A ball falls from rest 4rm a height "h" onto a floor,and rebounds bk...to height h/4.... find the coff. of restitution b/w the floorn ball?? ...

Two non conducting hemispheres having uniform equal and opposite charge those two halves are joined to make a sphere and kept in uniform electric field the diameter makes an angle θ with horizontal the ground has sufficient ...