Answer:
![\mu_k=0.101](https://tex.z-dn.net/?f=%5Cmu_k%3D0.101)
Explanation:
It is given that,
Mass of Albertine, m = 60 kg
It can be assumed, the spring constant of the spring, k = 95 N/m
Compression in the spring, x = 5 m
A glass sits 19.8 m from her outstretched foot, h = 19.8 m
When she just reach the glass without knocking it over, a force of friction will also act on it. Using the conservation of energy for the spring mass system such that,
![\dfrac{1}{2}kx^2=\mu_k mgh](https://tex.z-dn.net/?f=%5Cdfrac%7B1%7D%7B2%7Dkx%5E2%3D%5Cmu_k%20mgh)
![\mu_k=\dfrac{kx^2}{2mgh}](https://tex.z-dn.net/?f=%5Cmu_k%3D%5Cdfrac%7Bkx%5E2%7D%7B2mgh%7D)
![\mu_k=\dfrac{95\times (5)^2}{2\times 60\times 9.8\times 19.8}](https://tex.z-dn.net/?f=%5Cmu_k%3D%5Cdfrac%7B95%5Ctimes%20%285%29%5E2%7D%7B2%5Ctimes%2060%5Ctimes%209.8%5Ctimes%2019.8%7D)
![\mu_k=0.101](https://tex.z-dn.net/?f=%5Cmu_k%3D0.101)
So, the coefficient of kinetic friction between the chair and the waxed floor is 0.101. Hence, this is the required solution.
The only graph that accurately depict the given motion is graph D.
The given parameters;
- initial position of the man = 0
- direction of the man's first displacement = backward
- time of first motion, t₁ = 6 seconds
- velocity of this first displacement = v₁
- time without any motion (<em>zero movement</em>) = 6 seconds
- direction of the second displacement = forward
- velocity of second displacement = 2v₁
Let the acceleration of the first displacement = a
Acceleration of the second displacement = 2a
From the given graphs we can eliminate every graph without initial decrease or motion towards the negative direction.
The only options with initial motion towards the negative direction are;
The difference between graph B and D;
- in graph B there is a uniform motion for 6 seconds
- in graph D there is no motion for 6 seconds (<em>this is obvious as the line fall directly on top of the horizontal axis maintaining a value of zero for 6 seconds</em>).
Thus, the only graph that accurately depict the given motion is graph D.
Learn more here: brainly.com/question/21095906
The correct answer is:
D. Electromagnetic waves.
The arrows represent electromagnetic waves.
![|Huntrw6|](https://tex.z-dn.net/?f=%7CHuntrw6%7C)
Answer:
Whats up Bmw,
The organisms is caused when both the organisms or species are harmed, which is limited supply of at least one resource from food or even water used by both can be a factor.
Explanation:
Hope I helped you, and let me know if you need help on anything else :p