Two trains 120 m and 80 m in length are running in opposite directions with velocities 42km/h and 30 km/h. In what time they will completely cross each other?
Vishal261104
Asked:
December 2022
In an organic compound Carbon, Hydrogen and Oxygen are 60%, 13.33% and 26.66% respectively. Find molecular formula if the molecular mass of compound is 60.