Abus goes 500km east from town a to town b in the morning and comes back halfway in
the evening travelling west. what is the distance and displacement of the bus?

a longitudinal wave moves energy that is to the direction of the wave’s movement. - true

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.