A boy and his sister shared a sum of money in the ratio 5:4. what fraction of the total amount of money is the sisters share? answer urgent please

3. a lunar exploration vehicle was created by a research team. it weighs 3,000 kg on the earth. it needs an acceleration of 10 m/s2 on the moon. in order to have the same acceleration, what will be the net force acting on the vehicle on the earth?

Atruck with 34-in.-diameter wheels is traveling at 55 mi/h. find the angular speed of the wheels in rad/min, *hint convert miles to inches & hours to minutes:

The process of a material going through a change of state from a gas to a liquid