30cm^(3) of iron weighs 234g. Find its density in kg m^(-3) .
A block of mass 2kg is kept on a truck moving with a constant acceleration. The height 'h' of the block is 60 cm and its width 'w' is 15 cm . The surface between the block and the truck is sufficiently rough toprevent slipping. The minimum acceleration of the truck at which the topple is (take g = 10 m//s^(2) )
An iceberg weighs 400 tonnes. The specific gravity of iceberg is 0.92 and the specific gravity of water is 1.02. what percentage of iceberg is below the water surface?
1 kg =____tonne
A large watermelon weighs 20 kg with 96% of its weight being water. It is allowed to stand in the sun and some of the water evaporates so that only 95% of its weight is water. Its. reduced -weight will be 16 kg b. 16. 5 kg c. 17 kg d. 18 kg
1 kg =_____tonne
A diamond weighs 3.71 g . It is put into a box weighing 1.4 kg . Find the total weight of the box and diamond to the correct number of significant figures.
A truck weighing 5xx10^3 kgf and.a cart weighing 500 kgf are moving with the same speed. Compare their kinetic energies.
An empty truck of mass 1000 kg is moving at a speed of 36 km h^(-1) . It is loaded with 500 kg material on its way and again moves with the same speed. Will the momentum of the truck remain the same after loading? If not, find the momentum of the truck after loaded.
