.Why does the tension in each chain of a carrying a child increase as an adult pulls the
swing backward?

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.

J. j. thomson’s experiment disproved the theory that an atom

Ihave a density of 1.61g/cm^3 and a mass of 28g. find the missing value