A football coach paces back and forth along the sidelines during a close rivalry game. the diagram below shows several of the coach's positions and various times. At each marked positions, the coach makes a u-turn and moves the opposite direction. In other words, the coach moves from position a to b to c to d. (Could someone please explain this. Thank you)

as we probably am aware that our atmosphere or air have various levels, each level has different gasses, and each gas has another porousness. at the point when the light originates from lower porousness to higher penetrability, it alters its course. with the goal that implies that when the light originates from the moon to the earth, it alters it's course a lot more occasions. it essentially implies that the state of the light piece of the moon is changed on the earth.

not copied too! hope this !

joke:

h o h o hope you have a merry christmas!

the answer is false. this is because for ice to melt, it requires latent heat of melting. latent heat means heat energy required to change phase without any increase in temperatures. therefore, the ice will take energy from the environment to melt hence atmospheric temperatures will reduce.

ingenuity says that the answer is 2.7 m.

the answer is the index of refraction of the second medium is higher. i just took the test.