a sheet of Glass has a thickness of 7mm and an apparent thickness of 4.5 mm what is a refractive index of the Glass by how much weight of a object over which the sheet is to be raised

small = small current large mag large current

the answer is f1 and d2 because if you put equal force on those two points the beam would balance trust me on this

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.