When moving a couch, you exert a force of 400 n and push is 4.0 m how much work did you do on the couch

The correct answer is that you did 1600 J of work on the couch.

Explanation:

To solve this problem, we need to remember the equation for work in physics.

Work = Force * Displacement

Now, we must plug in the given information into this equation and simplify.

Work = (400 N)*(4.0 m)

Work = 1600 J

Therefore, your answer is 1600 J.  Don't forget that your units for force must be Newtons and the units for displacement must be meters in order to get joules for the units of work.

Hope this helps!

unlike poles attract

d. air pressure decreases as altitude increases.