Julie sits on a swing. her free-body diagram is shown.

the net force on julie is
? ? n.

Explanation :

The free body diagram shows all the forces acting on an object. It simplifies the problem of mechanics.

In this case, the forces acting on Julie are normal force i.e. and gravitational force i.e.  

As both the normal force and the gravitational force oppose each other i.e. the forces are balanced. So, the net force acting on her is equal to zero i.e.

Hence, the net force acting on Julie is 0 N.

it becomes positively charged by charging it

1.195000

explanation:

total mass=0.0117+0.0137+0.0881+0.0111

total mass= 0.01172kg

total velocity = 0.283-0.743+0.871-0.799+0.155+0.637+0.301=0.102

momentum=mv=0.1172*0.102=1.195000//