Astudent measured the mass of a small object and found it to be 56.0 grams. the object's mass is known to be 55.0 grams. what is the percent of error in the student's measurement?

The percentage error, also known as percent error, is a measure of how inaccurate a measurement is, standardized to how large the measurement is. It is the relative error expressed in terms of per 100.

The solution would be like this for this specific problem:

% error= |(55.0g − 56.0g) / 55.0| × 100 = 1.82%

I hope this helps and if you have any further questions, please don’t hesitate to ask again.

the independent variable, or the one that is intentionally manipulated is the speed.

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.