What distance must the block travel if the net work done on the block by f(x) and friction combined is to be exactly zero?

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.