The distance s (in LaTeX: m m ) above the ground for a projectile fired vertically upward with a velocity of 4LaTeX: \left[a\right] [ a ] LaTeX: m/s m / s as a function of time t (in LaTeX: s s ) is given byLaTeX: s=4\left[a\right]t-4.\left[b\right] t^2 s = 4 [ a ] t − 4. [ b ] t 2 . Your instructor will provide you with a and b. Find the answers to these questions. find LaTeX: t t for LaTeX: v=0 v = 0 find LaTeX: v v for LaTeX: t=4 t = 4 find LaTeX: v v for LaTeX: t=5 t = 5 What conclusions can you draw?

The mass of a muon is 207 times the electron mass; the average lifetime of muons at rest is 2.21 μs. in a certain experiment, muons moving through a laboratory are measured to have an average lifetime of 7.04 μs. for the moving muons, what are (a) β (b) k, and (c) p? the rest energy of the electron is 0.511 mev.

Which explanation describes the forces involved for a person to walk down the sidewalk? a. the person's feet push backward on the sidewalk; the sidewalk pushes backward on the person. b. the person's feet push forward on the sidewalk; the sidewalk does not push on the person. c. the person's feet push backward on the sidewalk; the sidewalk pushes forward on the person. d. the person's feet push forward on the sidewalk; the sidewalk pushes forward on the person.

In the nineteenth century, gregor mendel first determined some basic rules of genetics that have been observed throughout all types of life. no observations have disproved these basic rules of genetics. charles darwin developed the idea of biological evolution around the same time, but he was unaware of mendel’s discoveries in genetics. over a century later, darwin’s idea of evolution was modified in order to incorporate mendel’s rules of genetics along with the other evidence that darwin had used. what is most likely the relationship between mendel’s rules of genetics and darwin’s idea of biological evolution? a.)mendel’s genetics states laws that are now part of the theory of biological evolution.b.)biological evolution states laws that are part of mendel’s theory of genetics.c.)mendel’s genetics replaced darwin’s entire concept of biological evolution.d.)biological evolution is a law that explains why all genetics exist.