Two people are paddling a row boat. Together they exert a horizontal force of 500 N toward the back of the boat. The water resists (opposite direction) the motion of the boat with a force of 200 N. If the combined mass of the boat and the two people in it is 200 kg, what is the acceleration of the rowboat? *

r=rho l/a where a is the area, l is the length and rho is resistivity so the greater the area the lesser the resistance thats why the earth pin is thicker bcos current follow the shortest path, so less resistive .

im guessing the west of station b

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.