If the earth suddenly contrats to half of its original size without any change in mass,the new duration of the day would be :

If the earth shrinks without any change in mass,how the length of the day will be affeced?

If the earth suddenly shrinks to half of its present radius, the acceleration due to gravity will be

It is known that atom contain protons. Neutrons and electrons. If the mass of neutron is assumed to half of its orginal value where as that of proton is assumed to be twice of its original value then the atomic mass of ._(6)^(14)C will be :-

If the earth suddenly shrinks (without chaging mass) to half its present radius, the value of g will be

A wire has a resistance of 32Omega It is melted and drawn into a wire of half of its original length. Calculate the resistance of the new wire. What si the percentage change in resistance?

A woman throws an object of mass 500 g with a speed of 25 ms^-1 . If the object hits a wall and rebounds with half the original speed, what is the change in momentum of the object?

A charged particle moving with a uniform velocity vecv enters a region where uniform electric and magnetic fields vecE and vecB are present. It passes through the region without any change in its velocity. What can we conclude about the magnitude of vecE and vecB ?

A wire of length l is drawn such that its diameter is reduced to half of its original diameter. If the initial resistance of the wire were 10Omega , its new resistance would be