Recently Active Questions

Mechanics: *Image* The coefficients of friction are μs = 0.40 and μk = 0.30 between all surfaces of contact. Determine the force P for which motion of the 30-kg block is impending if cable AB (a) is attached as shown, (b) i ...

A mass 'm' is undergoing S.H.M. in the vertical direction about the mean position 'x' with amplitude 'A' and angular freq. \omega . At a distance y from the mean position, the mass detaches from the spring. Assuming that the ...

A straight conductor of uniform cross-section carries a current I. Let 'S' be the specific charge of an electron. The momentum of all the free electrons per unit length of the conductor, due to their drift velocities only, in ...

A block of mass 'M' executes S.H.M. with amplitude 'A'. When it passes through the mean position, a lump of putty of mass 'm' is dropped on it.Find the new amplitude. ...

A SPHERE OF RADIUS 'R' IS FLOATING IN A LIQUID OF DENSITY '\rho ' WITH HALF OF ITS VOLUME SUBMERGED. IF THE SPHERE IS SLIGHTLY PUSHED AND RELEASED, IT STARTS PERFORMING S.H.M. FIND THE FREQUENCY OF THESE OSCILLATIONS. ...

http://in.news.yahoo.com/43/20100216/812/tnl-iit-jee-likely-to-be-abolished-by201.html New Delhi, Feb 16 (IANS) The joint entrance examination (JEE) for admission to the Indian Institutes of Technology (IITs) is likely to bec ...

A satellite is revolving around the Earth in a circular orbit with radius of 2R, where R is radius of earth.If suddenly,its velocity becomes zero in the orbit due to collision with some inter-stellar object(like a satellite), ...

An elipse of major axis 20√3 and minor axis 20 slides along the co-ordinate axes and always remains confined in the 1st quadrant. The locus of the centre of the ellipse describes the arc of a circle. Find the length of this ...

*Image* i am getting c) but ans. given is d) ...

*Image* Ans : b ...

There r exactly 2 points on the ellipse x2/a2 =+ y2/b2 =1.whose distance from the centre of the ellipse is same and equal to (1/√2 ) x (√(a2+2b2). Find the eccentricity of the elipse. ...

find the remainder when 21990 is divided by 1990? ...

A conducting metal balloon of Radius ' R ', essentially of negligible mass is charged with charge ' Q '. It has to carry a payload of mass ' M '. Find how the charge ' Q ' and the Intrinsic Energy ' W ' of the balloon depends ...

*Image* Ans. 1 i seem to have completely forgotten this . some help plz. ...

Can anyone have mathematics classroom notes of bansal classes/fiitjee and packages also if anyone have please contact me ashish_arora005@yahoo.com, i wnt to buy this notes ...

Q: A Zero order reaction would defnitely be : a) Elementary b) Complex In previous they had given complex (In which i had ticked elementary) as answer.. now in this they give elementary (In which i ticked complex) as answer?. ...

1)a long straight wire carries a current i.let B1 b the magnetic field at a pointt P at a distance "d" frm the wire ..consider a sec of length "l" of this wire such that point P lies on perpendicular bisector of the section . ...

1)a long straight wire carries a current i.let B1 b the magnetic field at a pointt P at a distance "d" frm the wire ..consider a sec of length "l" of this wire such that point P lies on perpendicular bisector of the section . ...

1) Find the sum of [(1/3√4) +(1/3√5) +(1/3√6).............(1/3√1000000)] [.] stans for G.I.F. 3√n denotes the cube root of n. ...

Q) In how many ways can you colour the faces of a cube with six di erent colours, if all the faces are to have a di erent colour ? i am getting 30 . guys, plz try and tell me your answers. ...

A square loop of side length ' a ' , mass ' m ' and Resistance ' R ' enters a uniform magnetic field (B=B0 (-k)) with velocity ' v° ' at t = 0 sec Plot the variation of ' v ' with the distance from O ( Assume that ' v ' is e ...

the eqn 8x^2 -14xy +3y^2 +10x +10y -25=0 represents adjacent sides of a ||ogram whose diagonals intersect at the points(3,2)...find the eqn of other 2 sides ,.... ...

*Image* *Image* *Image* *Image* *Image* *Image* *Image* need solutions with proper reasoning. ...

Show that: cos( π/7 )cos( 2π/7 )cos( 3π/7 )= 1/8 ...

good news guys....after so much searching i finally found out complete fitjee material in pdf format downloadable...hurry...it may be removed due to copyright soon...the link is..... : http://www.coachingtrendsetters.com/brow ...

6x + 8y = 48 intersects the coordinate axis at A and B respectively. a line L bisects the area and the perimeter of the triangle AOB. where O is the origin. the number of such lines possible is - (a) 1 (b) 2 (c) 3 (d) more th ...

If a triangle is formed by any 3 tangents of the parabola y2= 4ax, two of whose vertices lie on the parabola x2=4by, then find the locus of the 3rd vertex. ...

For x>0, and A,B,C being the angles of a triangle, Prove that *Image* ...

1) From a point P , Tangents are drawn are drawn to the ellipse x2/a2 + y2/b2 =1. If the chord of contact touches the ellipse x2/c2 + y2/d2 =1 tHEN FIND THE LOCUS OF P. ...

NCERT question number 36. chapter - laws of motion. ...