Why does light change path when it changes mediums

7) The acceleration due to gravity near the surface of Mars is about one-third of the value near the Earth's surface.

As you grow older, you will need to remain physically active to keep a good level of physical fitness. true or false

Which of the following is not a way that oil production could potentially affect aquatic viability?

The cup has a mass of 0.025 kg and accelerated at a rate of 5m/s. how much force is the wind exerting the cup?

Which of the following occurs in meiosis that does not occur in mitosis 1 fertilization occur 2 body cells are made 3 sex cells are made 4 cell division occurs

How acceleration and gravitation (acceleration) are related/different?

The level of water in an olympic size swimming pool (50.0 meters long, 25.0 meters wide, and about 2.00 meters deep) needs to be lowered 6.50 cm. if water is pumped out at a rate of 4.

A 5kg mass has a force applied that changes its velocity from 8m/s to 2m/s in the same direction what is the change in momentum

True or false: electricity follows a circular pattern?

A diver shines a flashlight upward from beneath the water (n=1.33) at a 36.2° angle to the vertical. At what angle does the light leave the water? Express your answer using three significant figures?