Respuesta :

eisivm
440 (miles/hr)(1 hr/3600 sec)(5280 ft/1 mile) 
======
= (440*1*5280)/(1*3600*1)(ft/sec)

-----
= 645 1/3 ft/sec
rosaleecastaneda
440 (miles/hr)(1hr/36000sec)(5280ft/mile)
(440*1*5280)/(1*3600*1)ft/sec

645 1/3 ft/sec.