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one of the star of a binary(double) stars system is rotating in a circular orbit of radius r1 with time period T. If the mass of this star is m1 find the mass m2 of the other star. Also find the distance between the two stars ...
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0.4 gram hydrogen combines with 3.2 gram oxygen to produce water. H2S is produced by combination of 0.25 g hydrogen and 4.0 gram sulphur. 1 gram of sulphur combines with 1 gram of oxygen. Show that the results are in accordan ...
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A string 120cm in length sustains a standing wave with the points of the string at which the displacement amplitude is equal to 3.5 mm being seperated by 15cm. find, a)the maximum displacement amplitude b)to which overtone do ...
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A thin spherical shell of total mass M and radius R is held fixed. There is a small hole in the shell. A mass m is released from rest at a distance R from the hole along a straight line that passes through the hole and also t ...
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An artificial satellite (of mass m) of the earth (radius R and mass M) moves in an orbit whose radius in n times the radius of the earth. Assuming resistance to the motion to be proportional to e square velocity, that is, F=a ...
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*Image* Find the time period of small oscillations of the system composed of two homogenous circular cylinders, each of mass M and the connecting link AB. Assume no slipping on ground. ...
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Find the equation of the bisector of the angle between 4x+y-7=0 and x-4y+3=0 which contains the origin. ...
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Find th eq. of the locus of the point which moves such that its distance frm x-y+1+0 is twice its distance from x+y+6=0. ...
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the portion of a line intercepted between the co-ordination axes is bisected at (3,-2) find the equation of the line. ...
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solve the equation @=tan-1 (2tan2@) - 1/2 sin-1(3sin2@)/(5+4cos2@) ...
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Solve tan-1+ 2cot-1x=2Ï€/3 ...
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A particle is fired vertically upwrd with speed 9.8 km/s. Radius of earth=6400km.find maximum height attained by the particle. consider only earth gravitation. ...
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an object of mass 5kg is projected with v=20m/s at angle of 60 wit d horizontal .at highest point of its path d projectile explodes and breaks into 2 fragments of mass 1kg and 4kg.they separate horizontally.the explosion rele ...
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A manometric fluid dibutyl phthalate has density 1.047x103 kg m-3. what pressure of this liquid of one mm height suggest? [ans. 0.077 torr] pls explian!!! ...
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A disk an a sphere roll off two inclined planes of the same altitude and length. Which of the two objects will get to the bottom of the respective plane first? how does the result depend on the masses and diameters of the dis ...
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*Image* a man pushes a cylinder of mass m1 with the help of a plank of mass m2 as shown. There is no slipping at any contact. The horizontal component of the force applied by the man is F. find: (a) the accelerations of the p ...
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An inextensible rope tied to the axle of a wheel of mass m and radius r is pulled in the horizontal direction in the plane of the wheel. the wheel rolls without jumping over a grid consisting parallel horizontal rods arranged ...
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Two 20-g flatworms climb over a very thin wall, 10 cm high. one of the worms is20 cm long the other is wider and only 10 cm long. Which of them has done more work against gravity when half of it is over the top of the wall? W ...
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*Image* Setermine the natural freuency of vibration of 100N disc , assume the disc does not slip on the incline surface.. ...
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*Image* A sphere of radius r and mass m has a linear velocity v0 directed to the left and no angular velocity as it is placed on a belt moving to the right with a constant velocity v1. If after sliding on the belt the sphere ...
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*Image* Two discs of masses M and M/4 having radii R andR/2 resp. are kept on a smooth horiontal surface. The larger disc has a freely moving axle pivoted through its centre. the smaller disc having light thread wrapped over ...
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*Image* A loon the loop apparatus is made of quadrant of radius 4r joined to semi circle of radius r as shown. the track is frictionless and a small particle of mass m slides down starting from the highest point A of the quad ...
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which of the following behaves as (a) a nucleophile (b) an electrophile (c) both or (d) neither? Cl minus , NO plus , H2O , CH3Oh , CH4 , CH2O , CH3CN , CH3CH=CH2 , AlCl3 , BeCl2 , Cr plus3 , H2 and SnCl4... pls classify and ...
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If 12cot^3@ - 31cosec@ + 32= 0 then find sine@ @= theta ...
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A thin rod of length 2R and mass m is standing(vertically) on a perfectly smooth floor. the state of equilibrium in which the rod is at res is unstable, and the rod falls. find the trajectories that the various points of the ...
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can anyone pls solve this for me?a rain drop falls from rest in an atmosphere saturated with water vapour. as it falls, water vapour condenses on the drop at the rate of mass mu per second. if initial mass of drop is m naught ...
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*Image* The 2.7 kg cylinder B and 1.8 kg wedge A are released from a bigger triangular wedge C wich is fixed. the angle of inclination of C is 30 degrees frm the horizontal.Assuming that cylinder rolls without sliding on the ...
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A steel ball of radius R=20cm and maass =2kg is rotating about a horizontal diameter with angular velocity w naught=50 rad/sec. this rotating ball is dropped onto a rough horizontal floor and falls freely through a height of ...
