Acompass is a magnet and earth is a magnet. how does the magnetism of a compass work with the
magnetism of earth so that a compass is a useful tool for navigating?

Determine the amount of work done when a crane lifts a 100-n block form 2m above the ground to 6m above the ground

Phase changes are chemical changes. true or false

In a stagnant pool of water, a crayfish may spend much of its time lying with one side of its carapace near the surface of the water. in this position, it will move the walking legs on that side in a rhythmic back-and-forth motion. explain the likely function of this behavior.