PHYSICS QUESTION! NEED HELP ASAP! Part 1:

The index of refraction for silicate flint glass

is 1.66 for light with a wavelength of 400 nm.

Find the angle of refraction for light with

wavelength 400 nm that is incident on this

glass at an angle of 51◦.

Answer in units of ◦.

Part 2:

The index of refraction for silicate flint glass

is 1.61 for light with a wavelength of 700 nm.

Find the angle of refraction for light with

wavelength 700 nm that is incident on this

glass at an angle of 51◦.

Answer in units of ◦.

total distance travelled = 60 miles

total time taken =1.5 hours

average speed = total distance / total time

60 / 1.5

= 40

therefore, average speed = 40 m/h

happy to

pls mark as brainliest

answer: the direction of the wind is expressed as the direction from which the wind is blowing. for example, easterly winds blow from east to west, while westerly winds blow from west to east.

explanation:

the skeletons of most mammals reach a certain size and then stop growing. however, many animals, including some mammals, keep growing throughout their lives. kangaroos, for example, just keep growing and growing until they die. also, the longer an animal lives the greater the chance it might catch some deadly disease.