Answer:
The separation between the two lowest levels = 
The values of n where the energy of molecule reaches 1/2 kT at 300K = 
The separation at this level = 1.8 * 
J
Explanation:
Knowing the formula
En = 
Mass of oxygen molecule
m (O2) = 32 amu * 
So the energy diference between the two lowest levels:
E2 - E1 = 
E2 - E1 = 
Now we should find n where the energy of molecule reaches 1/2 kT
En = = 
= 
by the end is necessary to calculate the separation of the level
En - En-1 = 
= 1.8 * J
While skydiving, its not just freely falling under Earth's gravity. Additional force called drag acts against the gravity which slows down the rate of fall. Drag is caused by the air molecules which pushes against the body as it falls through them. This is actually a significant amount of force which slows down the rate of fall of the body. Drag depends on the contact surface area and weight. More the surface area in contact, more would be the drag. The sitting position of the skydiver would experience less drag than the chest down position because of the less contact surface area of the body with the air molecules while in the former case. No two persons have identical body shape and weight. Hence, the rate of fall can be made nearly equal but not exactly equal. This is would be possible when they are having same body position.
27.5 because of you divide the 55miles with the time you get your velocity which is the speed.
The temperature of the air above it
