Answer:
C:Hardness
Explanation:
if youre hitting something your going to see wich one breaks first
Yes, all of these could be applied to a roller coaster.
Answer:
Yes
Explanation:
The four outer planets are all gas giants made primarily of hydrogen and helium. They have thick gaseous outer layers and liquid interiors.
Answer:
"A pendulum swinging back and forth" is an example of harmonic motion
X = Xo cos ω t
Explains the back and forth motion of the pendulum
you could make a self propelled car all you need is cardboard, wheels, and a balloons or rubber bands
