<span>One type of substance is a >>element<<, which contains only one type of atom.</span>
If you are in plato the answer is B.
Answer:
A) The ball will roll forever in a straight path.
Answer:
The horizontal speed of a projectile is constant for the duration of its flight. This is because, once launched, there are no horizontal forces acting on the projectile (air resistance is usually ignored because it is very small) so horizontally the projectile will travel at a constant speed. For any calculations involving the projectile's horizontal motion, we use
distance=speed×time
d=vt
