Along a straight road through town, there are three speed-limit signs. They occur in the following order: 53 , 35 , and 24 mi/h, with the 35 -mi/h sign located midway between the other two. Obeying these speed limits, the smallest possible time tA that a driver can spend on this part of the road is to travel between the first and second signs at 53 mi/h and between the second and third signs at 35 mi/h. More realistically, a driver could slow down from 53 to 35 mi/h with a constant deceleration and then do the same thing from 35 to 24 mi/h. This alternative requires a time tB. Find the ratio tB/tA

What is the relationship between the direction of motion of the balloon and the wind currents

Suppose astronomers built a 140-meter telescope. how much greater would its light-collecting area be than that of the 10-meter keck telescope? express your answer using two sign

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.