Two paper screens A and B are separated by a distance of 100m. A bullet pierces A and then B such that the hole in B is 0.1m below the hole in A. If the bullet is travelling horizontally at the time of passing through A, calculate the velocity of the bullet when it hits the screen A. Neglect the resistance of the paper. Take g = 9.8m/s2.

Ohm's law tells you that i = v/r where v is equivalent voltage and r is equivalent resistance of the circuit
since all circuits have the same voltage, your question is really asking which circuit has the lowest total resistance, since the lower the resistance, the higher the current
circuit a has a resistance of 5 ohms; circuit c is in series so has a resistance of 10 ohms; circuit b is in parallel and therefore has a resistance of 2.5 ohms (review your notes on adding resistances in parallel and series); therefore b has the highest current

Newtons laws of motion

Hellosubatomic particles  are  particles  that are smaller than the atom. protons, neutrons, and electrons are the three mainsubatomic particles  found in an atom. protons have a positive (+)  charge. an easy way to remember this is to remember that both neutron and no  electrical charge  start with the letter "n."have a nice day