Answer:
Explanation:
We can use the conservation of energy here.
The solid cylinder has a gravitational energy at the top of the plane and kinetic energy at the end of the plane. Let's remember that the cylinder has kinetic energy due to the transnational movement and kinetic energy due to the rotational movement.
(1)
We know that ω=v/R and the moment of inertia around the central axis of a solid cylinder is I=(1/2)mR².
Now, we can rewrite (1) using the above definitions:
So we can solve it for v:
(2)
Using the length and the angle we can find the height of the inclined plane.
In our case:
- θ is 25°
- h is the height
- a is 2 meters
Finally, we put the value of h on (2) and find the speed next.
I hope it helps you!
<h2>Answer:</h2>
Entropy is the reason of worrying about world energy sources.
<h3>Explanation:</h3>
- Entropy is the measure of a system's thermal energy per unit temperature that is unavailable for doing useful work.
- The amount of entropy is also a measure of the molecular disorder, or randomness, of a system.
- For example , There are some reactions which are irreversible because some of the energy in the reaction is lost to environment instead of converting totally to the products.
- This lost of energy is entropy.
- Due to which the energy of universe is losing irreversibly.
- That's why we worry about world energy sources.
Answer:
as it 8s based upon to fundamental units distance and Time
A good way to think about mental and emotional health is like a tag team. Mental health refers to your ability to process information. Emotional health, on the other hand, refers to your ability to express feelings which are based upon the information you have processed.
It was stated on various researches that 2 percent of the planet's land area are occupied by the urban populations and about 75 percent of the earth's resources are consumed by them. Furthermore, these high-density human settlements also largely contributes to the pollution of the planet.