Atrain car of mass 3,825 kg sits at rest on the track. a second car of mass 5,169 kg moving at 6 m/s slams into it and they stick together. what is the combined speed of the train cars after the collision?

the answer is c i did the same question so i know that's right!

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 .

muscle endurance

explanation:

i can do 50 in a row ( but i get so tired after that)

568.98

explanation:

its math