Answer:
C. Your friend is incorrect, at this point, the cannon ball just has potential energy.
Explanation:
Potential energy is the kind of energy that an object has due to its position.
The unit for energy in the International System of Units (SI) is the joule, which has the symbol J.
Potential energy is usually related to forces that act on a body in a way that the total work done by these forces on the body depends only on the initial and final positions of the body in space.
These forces, receive the name of conservative forces and can be represented at every point in space by vectors expressed as gradients of a certain scalar function called potential.
To express that the event will continue until a specific time in the future the sentence would be rewritten in future perfect progressive tense. Future perfect progressive tense refers to the state of action that will be continuing until a specific time in a future.
Future perfect progressive tense is formed as subject + will+ been + present participle of the verb.
Therefore, the sentence would be rewritten as,
The students will have been painting for an hour without a break to create their Rockwell-inspired art.
Another word for accelerate is increase speed