Rock A is thrown horizontally off a cliff with a velocity of 20 m/s. The rock lands 60 m from the base of the cliff. Refer to the information and diagram shown
below. A second rock (Rock B) is dropped from the same height from which Rock
A was thrown. If both rocks are released simultaneously, which rock will strike the
ground first? *

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.

What is reflection, what is refraction, and what is diffraction. what some similarities or differences between the three.

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