(ii) The student obtained a value of 0.16 ms l for the terminal velocity of the sphere.
Calculate the viscosity n of the washing up liquid in Pas.
radius of sphere = 4.8 x 10-3
weight of sphere = 3.5 x 10
density of washing up liquid

the minimum amperage that the current in this wire would have to have so that its weight is completely supported by the magnetic force due to earth's field, assuming that no other forces except gravity act on it

i think the answer is a, hope 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.