In one of the examples during our class, we found the centripetal
acceleration of the Earth as it
revol ves around the Sun. Now,
compute the centripetal acceleration
of a point on the surface of the Earth
at the equator caused by the rotation
of the Earth about its axis, assuming
that the Earth's radius is 6370 km.
Also compute its angular speed.

In 1859, charles darwin published the first edition of on the origin of species, which explained his observations of various groups of animals that showed great similarities but minor differences. darwin concluded that if a population of one species separates into two different populations that live in separate locations, then over the course of many generations the different populations can develop into different species. this idea predicted many future biological findings and became the basis of modern biology. darwin’s explanation for why different species exist is best described as a(n) law. theory. inquiry. hypothesis.