Aflowerpot falls from a windowsill 25.0 m above the sidewalk. a. how fast is the flowerpot moving when it strikes the ground? b. how much time does a passerby on the sidewalk below have to move out of the way before the flowerpot hits the ground?

Alightning strike consists of charge moving from a cloud to the ground . in one particular case, the electrons in a lightning strike are confined to travel within a radius of 1.5 m and to move at a speed of 5.0 x 10 m/s. if the density of electrons in the strike is 10'15 electrons/m what current is carried by the lightning ?

The velocity of sound wave in air at 35°c is 353m/s, calculate the velocity of sound at 46°c

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.