Refrigerator transfers heat from a cold body(from inside) to hot body(outside atmosphere).Does it violate second law of thermodynamies?

A charge is situated outside an unchanged hollow conductor experience a force if another charge B is placed inside the conductor, but B does not experience any force. Why? Does it not violate the third law of motion?

In a refrigerator, one removes heat from a lower temperature and deposits to the surroundings at a higher temperature. In this process, mechanical work has to be done, which is provided by an electric motor. If the motor is of 1kW power, and heat is transferred from -3^@ C to 27^@C , find the heat taken out of the refrigerator per second assuming its efficiency is 50% of a perfect engine.

Write True or False The transfer of disease from one part of body to another that is not directly connected with it is called neoplasm.

Magnetic field lines can netiher emanate from a point nor end on a point. Yet the field lines outside a bar magnet do seem to start from the North pole and end on the South pole. Does the second fact contradict the first? Explain.

Does the escape speed of a body from the earth depend on:- the mass of the body

Does the escape speed of a body from the earth depend on:- the height of the location from where the body is launched?

A body is released from a great height and falls freely towards the earth. Exactly one sec later another body is released. What is the distance between the two bodies 2 sec after the release of the second body ?