Aboy with a mass of 66 kg sits on a see-saw, 1.2 meters from the fulcrum. how far from the fulcrum will a 44-kg girl need to sit to balance the boy?

The ph of your mouth is very similar to that of stomach. true or false?

When the force acting on an object points at least partially in the direction of the motion the work done is considered to be negative

Suppose you have a box. which of these is not necessarily a true statement regarding the relationship between the force applied to the box, the work done on the box, and the distance the box is moved? a. if the box is not moved, no force is being applied to the box. b. if no force is applied to the box, no work is done on the box. c. if work is done on the box, then a force is applied to the box. d. if work is done on the box, then the box is moved a distance.