Suppose a constant net force of 345 N is applied to slide a heavy stationary couch across the floor. If the force is contact with the couch for 1.5 seconds, then what is the change in
momentum of the couch?

The sun's gravitational pull is weaker on the planets that are closer to it, i think.

Make them both to where they have the denominator of 18that makes 3/2 equal 27/18 and 1/9 equal 2/18so now you have  27/18x+5=2/18subtract 5 from the other sideso now you have 27/18x+2/18-5then subtract 2/18 from 27/18 to get 25/18x=-5then divide 25/18 by -5 and your answer will be  -5/18