Density = mass/volume
Mass = 35g
Volume = 5cm3
35/5 = 7g/cm3
So the answer is A to 1 decimal place
Answer: Gravity slows the ball down as it goes up and eventually stops it from going up and starts to pull it back down to earth.
Explanation:
No light does not need medium to travel.Its an electromagnetic(EM) wave.All EM waves travel independent of medium. In contrast mechanical waves need a medium,sound waves,shock waves are mechanical and they need medium to transfer energy or travel.
Long wavelength corresponds to having lower frequency
