The ratio of the speed of light in a vacuum to the speed of light in a substance is defined as that substance's ____________________ ____________________ ____________________

Fill in the blank(s) with correct word


index of refraction

Environmental & Atmospheric Sciences

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A car accelerates from rest at 2 m/s2. What is its speed 3 s after the car starts moving?

A) 2 m/s B) 3 m/s C) 4 m/s D) 6 m/s E) none of the above

Environmental & Atmospheric Sciences

The __________________ mountain chain runs through northern England and was the source of the coal, ores, and waterpower that fueled the Industrial Revolution.

-Pennines -Pyrenees -Alps -Carpathian -Apennines

Environmental & Atmospheric Sciences

American bombers flying west for bombing raids on Japan in World War II were slowed down significantly when they encountered a jet stream

Indicate whether the statement is true or false

Environmental & Atmospheric Sciences

Subarctic climates contain primarily which type of vegetation?

a. mediterranean woodland shrub and grassland b. coniferous forest c. ice cap d. mid-latitude prairie and steppe grassland e. tundra

Environmental & Atmospheric Sciences