A runner is warming up for her event on a circular track with a diameter of 102 m. She starts by walking 1/5 of the way around the track in 177 s, then sprinting the next 3/5 of the way around the track in 127 s, before walking the final 1/5 of the track back to where she started in 178 s. What is the magnitude of the runner's average linear velocity from start to finish of her warm-up lap

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!