Wendi

In a time of 10s, a 70 kg student runs up 2 flights of stairs whose combined vertical height is 8.0m. compute the student's power output in doing work against gravity in (a)watts and (b)horsepower

A six-feet tall person wants to know the height of a tree. The person stands 20 feet from the tree and sights to the top of the tree. The angle of the sight line is 30 degrees. How tall is the tree?

find x 41 degrees. 39 degrees, 29degrees angles

Stephanie's answer for m/s will also work for m^3/s.

She's right!