Why do soldiers march disorderly while crossing a bridge?
Calculate the upthrust on an object of volume 50cm3 which is immersed in liquid of density \(10^{3}\) kgm-3 [g = 10ms-2]
Calculate the specific latent heat of vaporization of steam of 1.13 x 10\(^6\)J of heat energy is required to convert 15kg of steam to water.