Ineed
match the following with the correct answer
shoelace type time friction
identify the manipulated
variable in the study
identify the responding
variable in the study
what type of graph would best present this data?
pie chart (circle graph)
bar graph
line graph
write a short conclusion paragraph for this study. (restate hypothesis, evaluate data collected, and determine if the hypothesis was supported by the data collected.)

hello there!

your answer is a “generator”

a generator does not create energy but instead it transforms it.

it’s basically a motor working in reverse.

speed of light in vacuum is 300,000 km/s

speed of light in other mediums is given by the expression v = c/n, where c is the speed of light in vacuum and n is the refractive index of medium.

for the first medium v = 200,000 km/s

  so, refractive index of medium = 300000/200000 = 1.5

    1.5 refractive index is usually for glass. so first medium is glass.

for the second medium v = 250,00 km/s

so, refractive index of medium = 300000/250000 = 1.2

    1.2 refractive index is usually for water. so second medium is water.

for the third medium v = 0 km/s

so, refractive index of medium = 300000/0 = ∞

    ∞ refractive index is usually for opaque mediums. so third medium is opaque medium.