You went to buy rice from a shop. When the shopkeeper was weighing the rice, he balanced the rice bag with 5 kg, 500 gm, 250 gm and 100 gm weights. What is the weight of rice (in kg) you bought?
Molality (in mol/kg) of a solution in which 0.13 mole of solute is dissolved in 500 gm of water is:
A 10gm bullet is fired from a 5kg rifle horizontally with a velocity of 500 m/s .Find the recoil velocity of the rifle.