A grocer carefully lifts a 100 N crate of apples a distance of 1.5 m to a shelf in 2.5 seconds. What is his power output?

Bob is putting books on a shelf and takes a break after filling 18 1/2 inches on the book shelf. the book shelf is now 2/3 full. how long is the entire bookshelf?

Given the two similar triangles, how do i find the missing length? if a=4, b=5, and b'=7.5 find a'

Which of the following pair(s) of circles have las a common external tangent? select all that apply. a and b a and c b and c