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INTENSITY OF GRAVITATIONAL FIELD K SAWAA...

INTENSITY OF GRAVITATIONAL FIELD K SAWAAL#!#ABSE PADAI HOGI DAILY EK ASTROPHYSICS FACT K SAATH

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Two blocks A and B are connected by a spring made of a non conducting material. The blocks are placed on a non conducting smooth horizontal surface (see figure). The wall touching A is also non conducting. Block A carries a charge – q. There exists a uniform electric field of intensity E_0 in horizontal direction, in the entire region. Find the value of minimum positive charge Q that we must place on block B and release the system so that block A subsequently leaves contact with the wall. Force constant of the spring is k. Neglect interaction between charges on the blocks.

The K.E. of a satellite in an orbit close to the surface of the earth is E. Its max K.E. so as to escape from the gravitational field of the earth is

The K.E. of a satellite in an orbit close to the surface of the earth is E . Its max K.E. so as to escape from the gravitational field of the earth is

For a magnetising field of intensity 2xx10^3A//m , aluminium at 280K acquires intensity of magnetisation of 4*8xx10^-2Am^-1 . Find the susceptibility of aluminium at 280K . If the temperature of the metal is raised to 320K , what will be its susceptibility and intensity of magnetisation?

For a magnetising field of intensity 2xx10^3Am^-1 , aluminium at 280K acquires intesity of magnetisation of 4*8xx10^-2Am^-1 . Find the susceptibility of aluminium at 280K . If the temperature of the metal is raised to 320K , what will be its susceptibility and intensity of magnetisation?

A solid sphere of radius R and mass density rho is surrounded by another outer sphere of density 2 rho . Let E_(P) is gravitational field at P and E_(Q) is at Q. If the ratio of E_(Q)//E_(P)=3k//4 . Find the value of k.

A satellite is revolving round the earth. Its kinetic energy is E_k . How much energy is required by the satellite such that it escapes out of the gravitational field of earth

(i) Find the field intensity if potential V = - k x y (k gt 0) . (ii) Draw the field pattern of the field in i.