An object of mass m is projected away from the surface of the earth in the direction per- pendicular to the surface of the earth with an initial speed vo. assume that there is no air resistance. (a) find an expression for the velocity of the object in terms of its distance x from the surface of the earth during the period when the object is rising. (b) find the least initial speed of the object such that the object does not come back to the earth. this speed is called the escape speed. solution.

the answer is d

step-by-step explanation:

x = 12

y = 15

step-by-step explanation:

two data sets with the same median will not have the same varaibility

step-by-step explanation:

the answer is; biodiversity resulting from few ancestors

adaptive radiation occurs when a population is subjected to a large natural environment with spatial ecological variations. the parts of the population in the different ecologies begin to adapt to their local environments. due to non-random mating across the large populations, this causes the different populations from the large population to speciate within their local environments. they, therefore, diverge to different species sharing a common ancestor.