B) the sound waves refract as they move from one medium to another
C) the darkness in the theatre absorbed light but not sound so you can hear
D) the sound waves diffract much more than the light waves so try bend and spread as they move through the doorway.
b. The shadow cast by a rock that's stuck on the edge of a spinning wheel.
c. A car driving from San Diego to Los Angeles.
d. An ant walking at a steady pace from the tip of a propeller toward the hub.
e. None of these settings.
Answer:
option b is correct.
Explanation:
Since the position as a function of time is given by
which is a periodic function thus the motion of the particle repeats after a time of 2 seconds thus among the given options only option b is case of repetitive motion thus option b is most appropriate since the spinning wheel repeates it's motion.
B) Earth's temperature has not changed over time.
C) Earth's temperature has become warmer.
D) Earth's temperature has reduced by fifty times.
Answer:
Earth's temperature has become cooler
Explanation:
The number of sunspots, as you have learned, can indicate whether the sun is in a maximum-activity period or a minimum-activity period. Some scientists believe this can have an overall effect on the climate of Earth.