In order to move a bag of dog food across a 10 meter room, you apply 20 newtons of force. how much work was done? (2 points)

Work in physics is defined as force times distance (there is also an angle but that doesn’t seem applicable here). In this case:

W = F•d

W = (20 N)(10 m)

W = 200 Nm or 200 joules

200 joules of work was done on the bag of dog food.

Hope this helps!

the minimum amperage that the current in this wire would have to have so that its weight is completely supported by the magnetic force due to earth's field, assuming that no other forces except gravity act on it