D. magnetic
b. potential c. chemical
4. if work stays the same and distance is increased, then
a. less
b. more
c. the same
force will be needed.
d. no

a. less

Explanation:

The work done on a system is defined as the product of force and displacement. It is stored as the energy in the system.

The formula for work is given by

                         W = F x S    joules

where F - force

           S - displacement

From the above equation, if the work remains constant when the distance is increased, then the quantity of force should be reduced.

the box does not move because you need to use a force greater than 300 n. you are only using 50 n. it needs to at least be 301 n for the box to move because then it is an unbalanced force and it will move the way that the greater force is pushing it. if you use only 300 n it will be a balanced force and will not move because the force you are exerting on the   box is the same as its force.

hope this !

im sorry if i went too in depth, i am going to include a link to a video on khan academy that will explain this.   hope that you like the video and that it explains more in detail to you.

that is the link.

dec 23, 2016 - a load of bricks weighing 680 n a distance of 10 m across a parking lot. if if the worker pushes the cart with a constant force of 209 n, what work= force x distance = 220 n x 10 m = 2200 n.m = 2200 j i don't know where the person got it from, but the initial part, work= force x distance me.