Aspring-loaded gun shoots a plastic ball. the trigger has just been pulled and the ball is starting to move down the barrel. the barrel is horizontal.

draw a free-body diagram for the ball. assume the ball is moving to the right

The free-body diagram for the ball is shown in the pic.

Explanation:

The ball rests on the floor of the barrel because the gravitational force is equal to the normal force. The force of the spring  pushes to the right and causes an acceleration to the right.

The free-body diagram for the ball is shown in the pic.

c.the charges if the proton and electron and gravity

the best answer for these questions would be:

1.            c. is smaller

2.            d) concrete operational

3.            b) interaction with the environment – the children interact with their environment can them learn more.

4.            a) parents who reason openly with children can limit a child’s cognitive ability.