A rope is shaken and produces 7 waves each second. Calculate the time period of the rope waves.

14 hour a day

Explanation:

Because the waves is very fast to flow

the maxium height is 34m/s

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.