The speed of light in a certain type of glass is 40% slower than the speed of light in air. The index of refraction for that type of plastic is about

On a cold day, when the air temperature is 0°c, you empty your lungs and take a deep breath, filling your lungs with 4.2 l of air. if you hold your breath until the temperature of the air in your lungs reaches 37°c, what is the volume of the air in your lungs at that point, assuming the pressure does not change?

Will a heavier bowling ball hit pins better than a lighter bsll

Select the word from the list that best fits the definition classification of most stars on the h-r diagram