Atrain is traveling at 50.0 miles per hour 1 mile is equal to 1.61kilometers. how fast is the train moving in meters per second? m/s

What is the relationship of air masses and the temperature of oceans?

What is the lowest number energy level where a d sublevel is found

If a molecule with a molecular formula of c13h18 is treated with an excess of h2 in the presence of finally divided pt metal under conditions required for maximum hydrogenation of the molecule to give a molecule with a formula c13h24, how many rings are in the molecule?