What is the name of the line drawn perpendicular to the surface where a light ray strikes?

If you going 80mph how long will it take you to go 80 miles

What is specific heat capacity

An incident light ray strikes water at an angle of 20 degrees. The index of refraction of air is 1.0003, and the index of refraction of water is 1.33. The angle of refraction rounded to the nearest whole number is °.

Paula finds four unlabeled containers of clear, odorless liquid in her laboratory storage. one of the containers holds water. she knows that water has a density of 1.0 g/ml. use the data provided to calculate the density of each liquid.

Which statement is NOT an advantage of renewable resources? A They produce clean energy. B They are expensive to collect and transform into energy. C They are safe for the environment. D They replenish quickly.

Skeletal muscle cells have large stores of ATP that are readily available and alone can provide energy for maximal exercise lasting 30-60 seconds.

A catcher "gives" with a baseball when catching it. If the baseball exerts a force of 475 N on the glove such that the glove is displaced 8.97 cm, how much work is done by the ball? Answer in units of J.

Which of the following is the best sign that cooking pancake batter causes a chemical change

The electric field near the earth's surface has magnitude of about 150n/c. what is the acceleration experienced by an electron near the surface of the earth? express your answer to two significant figures and include the appropriate units.

Minerals are considered to be Answer made out of rocks the building blocks of rocks extremely rare and valuable difficult to find