IDNLearn.com is your go-to resource for finding answers to any question you have. Ask anything and receive immediate, well-informed answers from our dedicated community of experts.
Sagot :
Answer:
a) Newton proposed three laws to explain the motion of things.
b) bodies are in motion the kinetic moment is preserved,
c) entropy
Explanation:
In this exercise you are asked to explain various concepts of physics
a) Newton proposed three laws to explain the motion of things.
* The first law or inertia states that a body in an inertial system (without acceleration) remains stationary or with constant velocity if the sum of the forces is zero
* The second law states that the force (interaction) is proportional to the masses and the acceleration of the bodies
F = m a
* The third law or action and reaction, says that the forces always go in pairs, that is, if a body interacts with a body 2, and body 2 will also interact with body 1, with the same force but with the opposite direction, each force is applied to a body
b) when bodies are in motion the kinetic moment
L = I w
it is preserved, if it does not interact with the outside.
The quantity I called the moment of inertia is I = m r²
In this case
in the initial instant with outstretched arms
L = I₀ w₀
in the final moment. By shrinking your arms
[tex]L_{f}[/tex] = I_{f} w_{f}
as the body does not interact with another
L₀ = L_{f}
I₀ w₀ = I_{f} w_{f}
w_{f} = [tex]\frac{I_{o} }{I_{f} }[/tex] w₀
we substitute
w_{f} = \frac{r_{o} }{r_{f} }^2 w₀
as the distance of the arms extended is greater than when they are retracted (r₀> [tex]r_{f}[/tex]), the final angle speed increases
c) This is an application of the concept of entropy that establishes that disorder is the most probable state of a system, which is why the cave increases its disorder or entropy over time since by not fixing things, they are increasingly dispersed
We appreciate every question and answer you provide. Keep engaging and finding the best solutions. This community is the perfect place to learn and grow together. Thank you for trusting IDNLearn.com. We’re dedicated to providing accurate answers, so visit us again for more solutions.
