A meter stick balances at the 50. 0-cm mark. If a mass of 50. 0 g is placed at the 90. 0-cm mark, the stick balances at the 61. 3-cm mark. What is the mass of the meter stick?.

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.