On plane travelling 350 mph goes 1200 miles with the wind in the same amount of time that another plane going 450 mph goes 1300 against the wind. how fast is the wind blowing? enter only the numerical answer to the nearest miles per hour (mph).

Aprotein molecule in an electrophoresis gel has a negative charge. the exact charge depends on the ph of the solution, but 30 excess electrons is typical. what is the magnitude of the electric force on a protein with this charge in a 1600n/c electric field? write in two significant numbers, and also in newton