A locomotive engine pulls a train with a constant force. Comment on whether its acceleration will increase or decrease if more coaches are added to the train. Explain. When you drop a 2 kg iron weight and a 5 kg iron weight from a height, predict which one will fall first to the ground. Justify your answer

the acceleration will be unchanged according to newton second law of motion

Explanation:

convex lenses are thicker at the middle. rays of light that pass through the lens are brought closer together (they converge). a convex lens is a converging lens. when parallel rays of light pass through a convex lens the refracted rays converge at one point called the principal focus.

well clustered together.

points close on a scatter diagram