What is the wavelength of a sound wave that travels at 340m/s and has a frequency of 710Hz

if the person is shown to have +90n, then ans is -10n.

if the person is shown to have -90n, then ans is +10n.

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.