Suppose an object having mass m has an initial velocity u and after certain time t it attains a velocity v. Now momentum P1=mu and P2=mv So change in momentum =P2-P1=mv-mu =m(v-u) So the rate of change...
1.On heating lime stone release of which glass? Ans. carbon dioxide 2. Plaster of Paris made from? Ans. Gypsum 3.What is the pH of a solution of ph zero? Ans. Acidic 4.setting of plaster of Paris...