The kinetic energy of an object is given by:
Kinetic energy = 1/2 * mass * velocity²
If the kinetic energy of the pendulum at the top of its swing is 0, then this tells us that the velocity of the pendulum at that point is 0. All of the kinetic energy is converted to potential energy, and the pendulum starts moving in the opposite direction after this point in time.
Yes I belive so you can try it out
This could mean...
1) Do what your heart desires, if your heart wants to do something, do it.
Answer:
The correct answer is letter "B": The wire brush can remove too much material from the posts of the battery.
Explanation:
While cleaning a battery there are several considerations to be taken in order not to damage its function. At the moment of cleaning the posts, we must be very careful since this is the principal contact with the vehicle cables. In front of any damage, the vehicle may not even start.
Thus, using a soft wire brush with an electric drill is not appropriate since it could remove more material than the necessary from the posts.
