[" Two concentric spherical shells have masses "M_(r)],[M_(2)" and radil "R_(N)R_(2)(R_(1)

Two concentric spherical shells have masses m_(1) , m_(2) and radit R_(1) , R_(2) (R_(1) lt R_(2)) . Calculate the force by this system on a particle of mass m , if it is placed at a distance ((R_(1) + R_(2)))/(2) from the centre.

Two concentric spherical shells have masses m_(1) , m_(2) and radit R_(1) , R_(2) (R_(1) lt R_(2)) . Calculate the force by this system on a particle of mass m , if it is placed at a distance ((R_(1) + R_(2)))/(2) from the centre.

Two concentric spherical shells have masses m_(1) and m_(2) and radii r_(1) and r_(2) (r_(2) gt r_(1)) . What is the force exerted by this system on a particle of mass m_(3) . If it is placed at a distance r(r_(1) lt r lt r_(2)) from the centre ?

Two concentric spherical shells have masses m_(1) and m_(2) and radii r_(1) and r_(2) (r_(2) gt r_(1)) . What is the force exerted by this system on a particle of mass m_(3) . If it is placed at a distance r(r_(1) lt r lt r_(2)) from the centre ?

Two concentric spherical shells have masses M_1,M_2 and radii R_1,R_2(R_1ltR_2) . What is the force exerted by this system on a particle of mass m if it is placed at a distance (R_1+R_2)/2 from the center?

Two concentric spherical shells have masses M_1,M_2 and radii R_1,R_2(R_1ltR_2) . What is the force exerted by this system on a particle of mass m if it is placed at a distance (R_1+R_2)/2 from the center?