A project consists of replacing the track on an existing railroad line, involving 3,000 feet of track. The old track can be removed at a rate of 70 feet per hour. The old railroad ties can be removed at a rate of 200 feet (measured along the track) per hour. The new ties can be installed at a rate of 25 feet per hour, and the replacement track can be installed at a rate of 40 feet per hour. Show this operation on a linear schedule. Assume that the minimum float (buffer) for an activity at any location is 1 day.

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!