Plz i 15 points

suppose a bicycle was coasting on a level surface, and there was no friction. what would happen to the bicycle?
a. it would speed up since there is no friction.
b. it would keep going at constant speed.
c. it would slow down until it finally came to a stop.
d. it would slow down but would never stop.

What best describes the dropping height of a ball that bounces back up to a height of 45 cm

Will mark brainliest. (20 points) many have pigments structures known as eyespots that detect direction of light. a. b. archaebacteria c. protists d. none of the above

Dr. arenas is a scientist who has been trying to determine if increasing pressure will increase the sound that occurs when two chemicals explode. it measures the volume of the sound that occurs at the minimum pressure at which the explosion will occur. it then increases the pressure and measures the volume of the explosions that occur. what kind of investigation is the scientist conducting?