Physics Problem; CONVERSIONS
posted by Anonymous on .
PLEASE HELP ME SOLVE !!!!
InMay 1998, forest fires in southernMexico
and Guatemala spread smoke all the way to
Austin. Those fires consumed forest land at a
rate of 26900 acres/week.
On the average, how many square meters
of forest are burned down every minute? An
acre is an area equivalent to that of a rectangle
60.5 yd wide and 80 yd long, there are 36
inches in one yard, and there are 2.54 cm in
Answer in units of m2/min
26900 ac/wk * wk/7day * day/1440min gives ac/min
ac/min * 48560ft^2 * (12in/ft)^2 * (2.54cm/in)^2 * (1m/100cm)^2 gives m^2/min
Just carry the units along. Remember that multiplying by 1 does not change anything. Use the units you want to get or cancel.
Oops -- an acre is 43560 ft^2