Two identical speakers are 3.50 m and 5.20 m from a listener. What is
the lowest frequency (n = 0) that
would cause destructive
interference there?
(Unit = Hz)

the answer for apex is the lowest

wavelegth as in spectrum red oygbiv

c) up is the direction the magnetic force is acting on the charge.

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.