The speed of light in glass is given by class ccuum/n, where n is the "index of refraction (which typically has values somewhere around 1.5). in graded-index optical fibers n is not the same everywhere in the fiber. it is bigger near the central axis by maybe 2% compared to the edges of the fiber explain, why this can keep light, which is sent through the fiber, inside the fiber

Ithink the answers is b i hope it my friend message me if i’m wrong and i’ll change my answer and fix it for you

Ive never heard of creep meters

Wouldnt it be millileter

Distance covered, s = 8ft - 4ft = 4 ftinitial velocity, u = 34 ft/sthe acrobat is moving upwards and therefore, a = -g = -9.81 m/s^2 = 32.19 ft/s^2applying equation of motion; s = ut -1/2gt^2then,4 = 34t -1/2*32.19t^24 = 34t - 16.095t^2rearranging; -16.095t^2 + 34t - 4 = 0solving the quadratic equation; t = {-34 +/- sqrt [34^2 - 4(-16.)]}/2(-16.095) = 1.06 +/- 0.93 = 0.13 or 1.99the acrobat will take 0.13 seconds to be at 8 ft above the ground. additionally, once at the maximum height, the acrobat will move down and be at the same spot (that is height) after 1.99 seconds moving down.