Which example illustrates Newton's second law? A. The force of a wheelbarrow on the ground is equal to the force of
the ground on the wheelbarrow.
B. A person pushes a wheelbarrow, causing it to move forward.
C. More mass is added to a wheelbarrow, and a larger force is
required to move it.
D. A wheelbarrow remains stationary when no one pushes on it.

f=ma newton's second law 7x8=56n

higher potential

explanation:

because it is in a high speed so it must move into a of high potential

find the sum of the two horizontal vectors and the sum of the two vertical vectors

isoceles right angled triangle

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.