D Figure 3b shows an electrical circuit containing three power supplies connected to a single point A through protective resistors.

Figure 3b
Explain how you would use ammeters to demonstrate that Kirchhoff's first law ma
be applied at the junction P, no matter what settings are on each power supply.

what experimental evidence led scientists to change from the previous model to this one?

a few of the positive particles aimed at a gold foil seemed to bounce back.

the colors of light emitted from heated atoms had very specific energies.

experiments with water vapor showed that elements combine in specific proportions.

cathode rays were bent in the same way whenever a magnet was brought near them.

the answer is 12 as i may remember

: )

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.