Recently Active Physics Questions

find the maximum velocity by which earth can rotate about sun in terms of G, mass of sun M, eccentricity of ellipse and semi major axis ...

Q1 If μo and εo represent permeablity and permittivity of vacuum and μ and ε be the permittivity and permeablity of medium,then calculate refractive index of medium. Q2 In an npn transistor circuit,the collector current i ...

*Image* for the arrangement shown in figure, the spring is initially compressed by 3 cm. when the spring is released, the block collides with the wall and rebounds to compress the spring again. if the time starts at the insta ...

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the moon revolves round the earth 13 times in one year If the ratio of sun-earth distance to the earth-moon distance is 392 then the ratio of the masses of sun and earth will be Please solve it ...

A particle of mass m moves in the x-y plane, along a symmetric, frictionless, concave curve. The trajectory length along this curve is denoted by s. A uniform gravitational field acts in the negative y-direction. The particle ...

a car of mass m is moving on a horizontal circular path of radius r At an instant its speed is v and is increasing at the rate a Then prove that the coefficient of friction between the ground and car is not less than a/g ...

a cyclist cycles along the circumference of the circular horizontal plane of radius R The coefficient of friction depends upon the distance r from the center of the plane as u=uo(1-r/R) where uo=constant The centre of the cir ...

Q1. A uniform disc of radius r is spinned about its axis to an angular velocity ω and then carefully placed with its plane on a rough horizontal surface. Find the time taken for the disc to stop rotating, given the coefficie ...

Very conceptual..........plzzzz reply as soon as possible..... Q1 A source and observer both start moving simultaneously from origin,one along X axis and other along Y axis with speed of source equal to twice speed of observe ...

i was doing a qeustion in shm and i am stuck up here..........plz find moment of inertia about point P (pivot point) *Image* Semi circular wire. ...

Q1 2 blocks are arranged as in figure.The coeff of friction b/w blocks is μs whereas no friction b/w floor and block.Calculate max possible amplitude for no slipping. *Image* I am getting A=μsg(m+M)/k Q2 A disc of mass m is ...

*Image* cart slides without friction. find time period ...

*Image* a spring is cut into three equal pieces and connected as shown.... by wat factor will the time period of oscillation changes if a block is attached before and after ????? ...

What will happen to angle of min deviation in case of prism if we change frequency of light.. ...

a disc of mass M and radius R, lying in the vertical plane is free to rotate about a horizontal axis passing through its centre . a body of mass M is fixed at the highest point of the disc Now the system is released When the ...

the line of action of the resultant of two like parallel forces shifts by one-fourth of the distance between the forces when the two forces are interchanged The ratio of the two forces ...

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a particle of mass 2 kg undergoes s.h.m according to x = 1.5 sin(πt/4 + π/6 ) wat is the shortest time required for the particle to move from x = 0.5 m to x= -0.75 m ...

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PHYSICS FORMULA LIST(Std. XI && std. XII) Visit da fol. link : http://questtutorials.com/download.htm Chapterwise question and other useful stuff also available here available HOPE IT HELPS U ALL!! ...

*Image* a uniform rod of length L is pivoted at point A . it is struck by a horizontal force which delivers an impulse J at a distance X from point A, impulse deleivered by pivot is zero if X will be ............. (a) L/2 (b) ...

For rotational collisions we usually conserve angular momentum. (i) But is linear momentum conserved as well? (ii) If the coefficient of restitution is given, how do you calculate the question? Ex. A stick of length L and mas ...

Some Scientists have predicted that a global winter war on earth would occur be followed by 'nuclear winter'.What would cause nuclear winter? PLZZ HELP ME OUT!!!!!!![4][4][4][4][4][4] ...

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Similar to 1975 problem.......... *Image* ...

Which of the Following parameters does not characterize the Thermodynamic State of Matter (1) Pressure (2) Work (3) Volume (4) Temperature A Basic Question So quickly find itz answer ...

a particle is moving in a circular path of constant tangential acceleration time t after the beginning of motion the direction of net acceleration is at 30° to the radius vector at that instant The angular acceleration of th ...

Somebody............help.............doubt in KVL and KCL............someone answer this..........Im tryin this from a long time.......................... APPLY KCL AND KVL HERE....... *Image* ...