Jill can use a force of 12n to lift a single box up 5m. how many of these boxes must she lift in a minute to use 60 watts of power?

60 of the boxes

Explanation:

Work is said to be done if force is applied to move a body over a distance.

Work done = Force × distance

Workdone by Jill to move a box = 12×5 = 60Joules

Power is the rate of workdone in a specific time. It is measured in Joules/sec

Power = Work done/Time

60=60/time

Time = 60/60

Time=1 second

This means that it took Jill 1second to move a box.

If it takes 1second to move a box using a power of 60watts, this means Jill will move 60boxes in a minute (60seconds) using the same power.

d

explanation:

v=uf/(u-f)

= 5.10/(5-10) convex lens has positive focal length

=50/-5

=-10 cm (formed at other side)

the answer would most likely be c, because if it's a comical piece of information, it may likely not be true, if it's a site that allows anybody to edit the content, it could mean a five year old is typing the info, and if it's a tv show produced by a celeb, it may have a biased opinion.