If a pendulum has 45 joules of total energy, how many joules of kinetic energy would it have at the bottom of its swing?
group of answer choices

25 joules

45 joules

0 joules

15 joules

45j

Explanation:

the law of conservation of energy states that energy cant be destroyed or created

The correct answer is option b: 45J

Explanation:

Hello!

Let's solve this!

The law of conservation of energy says that energy is not created or destroyed, but transformed. This means that if I have a certain amount of energy and it becomes another, then it is exactly the same in quantity.

In this case as we have 45J of energy that is transformed into kinetic energy, then the answer is 45J

We conclude that the correct answer is option b: 45J

burning of wood and coal

explanation:

the panel also concluded there's a better than 95 percent probability that human-produced greenhouse gases such as carbon dioxide, methane and nitrous oxide have caused much of the observed increase in earth's temperatures over the past 50 years.

digestion

it excretes wastes