Which of the following is the best metaphor for an atom

The man fires an 80 g arrow so that it is moving at 80 m/s when it hits and embeds in a 8.0 kg block resting on ice. how far will the block slide on the ice before stopping? a 7.1 n friction force opposes its motion.

Transfer chemicals from one location to another to weather objects. a-water b-physical weathering c-chemical weathering

How would a small bar magnet be oriented when placed at position x?