A bolloon contains 400 m^(3) of hydrogens. If the mass of the balloon without hydrogen is 34kg. Its ne lifting is (Density of hydrogen 0.09 kg//m) Denstiy of air 1.3kg//m^(3))

A bolloon contains 400 m^(3) of hydrogens. If the mass of the balloon

1.	A bolloon contains 400 m^(3) of hydrogens. If the mass of the balloon without hydrogen is 34kg. Its ne lifting is (Density of hydrogen 0.09 kg//m) Denstiy of air 1.3kg//m^(3))
Answer» `590 KG.wt` 450 kg.wt 70 kg. wt 36kg. Wt Answer :B