CAN SOMEONE PLEASE SHOW ME HOW TO DO THIS IM CONFUSED

How much work is done lifting a 9.10-kg box
straight up onto a shelf that is 1.80 m high?
A. 5 J
B. 15 J
C. 50 J
D. 160 J

D. 160J

Step-by-step explanation:

Work = Force * Distance

but where is the force?

from here:

weight (not mass) is a force unit (Newtons) so it can be used here.

How do we get weight?

Mass * G

what is G?

gravity force... and it equals 9.8

so you take the box's mass (9.10)

multiply by 9.8 (9.10*9.8 = 89.18)

then plug into the first equation as the force (work= 89.18 * distance)

we also plug In the distance (work = 89.18 * 1.8)

and solve for work! (work = 89.18 * 1.8 = 160.52400)

then round the to the closest one (160)

and there you go! you've got your answer!

Hope this helps,

Yotam

P.S you can comment back if you are still confused and I will try to explain it again better.

first option

a function is a relation in which an input is paired with exactly one output.

so, let's find the right answer.

in our first option, our inputs are january, february, and march. the outputs are 30, 28, and 25. each input has it's own output. this is correct!

our second option we know is incorrect, because ms. valverade has two outputs, dogs and cats. this is not a function.

our third option is incorrect as well. the yellow square has two ouputs, the square and the triangle.

lastly, in our fourth option, we see the number 7 two times with a different output. therefore, this is not a function.

remember: each input must be paired with only one output!

i think that you should ask google for the answer to that problem because if we don't know it google does