Answer: The balance of oxygen and carbondioxide is made due to respreration and photosinthesis. As we leave carbon dioxide and take in oxygen the ballance of carbon dioxide and oxygen is made. And during the photosinthesis of plants the balance of carbon dioxide and oxygen is made.
Answer:
λ = 5940 Angstroms
Explanation:
This is an exercise of the relativistic Doppler effect
f’= f √((1- v / c) / (1 + v / c))
Where the speed in between the strr and the observer is positive if they move away
Let's use the relationship
c = λ f
f = c /λ
We replace
c /λ’ = c /λ √ ((1- v / c) / (1 + v / c))
λ = λ’ √ ((1- v / c) / (1 + v / c))
Let's calculate
v = 0.01 c
v = 0.01 3 10⁸
v= 3 10⁶ m / s
λ = 6000 √ [(1- 3 10⁶/3 10⁸) / (1+ 3 10⁶/3 10⁸)]
λ = 6000 √ [0.99 / 1.01]
λ = 5940 Angstroms
Answer:
Primero, definimos el desplazamiento como la distancia entre la posición final y la posición inicial.
Así, si comenzamos abajo, luego subimos la escalera, y luego bajamos, la posición final y la posición inicial serán la misma
por lo que el desplazamiento es igual a cero.
La medida recorrida es el espacio total recorrido.
Es decir, si entre el principio y el final de la escalera hay una distancia D.
La persona que sube y baja, recorre esta distancia dos veces.
Entonces cuando una persona sube y baja la escalera, la medida de su trayectoria será 2*D.
Answer:
The question is incomplete. However, I believe, it is asking for the acceleration of the elevator. This is 3.16 m/s².
Explanation:
By Hooke's law, ![F = ke](https://tex.z-dn.net/?f=F%20%3D%20ke)
F is the force on a spring, k is the spring constant and e is the extension or compression.
From the question,
![F = (1.08\text{ kN/m}) \times (6.0 \times 10^{-2}\text{ m}) = 64.8 \text{ N}](https://tex.z-dn.net/?f=F%20%3D%20%281.08%5Ctext%7B%20kN%2Fm%7D%29%20%5Ctimes%20%286.0%20%5Ctimes%2010%5E%7B-2%7D%5Ctext%7B%20m%7D%29%20%3D%2064.8%20%5Ctext%7B%20N%7D)
This is the force on the mass suspended on the spring. Its acceleration, a, is given by
![F = ma](https://tex.z-dn.net/?f=F%20%3D%20ma)
![a = \dfrac{F}{m}](https://tex.z-dn.net/?f=a%20%3D%20%5Cdfrac%7BF%7D%7Bm%7D)
![a = \dfrac{64.8 \text{ N}}{5\text{ kg}} = 12.96\text{ m/s}^2](https://tex.z-dn.net/?f=a%20%3D%20%5Cdfrac%7B64.8%20%5Ctext%7B%20N%7D%7D%7B5%5Ctext%7B%20kg%7D%7D%20%3D%2012.96%5Ctext%7B%20m%2Fs%7D%5E2)
This acceleration is more than the acceleration due to gravity, g = 9.8 m/s². Hence the elevator must be moving up with an acceleration of
12.96 - 9.8 m/s² = 3.16 m/s²