A ray of red light in air is incident at an angle of 30. on a
boundary with olive oil. What is the angle of refraction, to the
nearest degree, for this light ray in the olive oil?
a 60
§ 20
C 30°
x
do
e 47

The percent efficiency of a machine can never be 100% (or greater), because in the real world some energy is always converted into a. heat b. work c. input force d. output force

Which of the following is not a part of the respiratory system? a. pharynx b. trachea c. pancreas d. larynx

Amodel rocket with a mass of 0.212 kg is launched into the air with an initial speed of 84 m/s. how much kinetic energy will the rocket have at a height of 214 m? assume there is no wind resistance. 634 j 303 j