A 320 kg rocket sled can be accelerated at a constant rate from rest to 1300 km/h in 2.2 s. What is the magnitude of the required net force?

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.