Answer:
The ratio of the pressure at the top to the pressure at the bottom is ![\dfrac{701}{1000}](https://tex.z-dn.net/?f=%5Cdfrac%7B701%7D%7B1000%7D)
Explanation:
Given that,
Number of molecules ![n= 10^24](https://tex.z-dn.net/?f=n%3D%2010%5E24)
Mass ![m= 3\times10^{-26}\ kg](https://tex.z-dn.net/?f=m%3D%203%5Ctimes10%5E%7B-26%7D%5C%20kg)
Temperature = 300 K
Height ![h = 5\times10^{3}](https://tex.z-dn.net/?f=h%20%3D%205%5Ctimes10%5E%7B3%7D)
We need to calculate the ratio of the pressure at the top to the pressure at the bottom
Using barometric formula
![P_{h}=P_{0}e^{\dfrac{-mgh}{kT}}](https://tex.z-dn.net/?f=P_%7Bh%7D%3DP_%7B0%7De%5E%7B%5Cdfrac%7B-mgh%7D%7BkT%7D%7D)
![\dfrac{P_{h}}{P_{0}}=e^{\dfrac{-mgh}{kT}}](https://tex.z-dn.net/?f=%5Cdfrac%7BP_%7Bh%7D%7D%7BP_%7B0%7D%7D%3De%5E%7B%5Cdfrac%7B-mgh%7D%7BkT%7D%7D)
Where, m = mass
g = acceleration due to gravity
h = height
k = Boltzmann constant
T = temperature
Put the value in to the formula
![\dfrac{P_{h}}{P_{0}}=e^{\dfrac{-3\times10^{-26}\times9.8\times5\times10^{3}}{1.3807\times10^{-23}\times300}}](https://tex.z-dn.net/?f=%5Cdfrac%7BP_%7Bh%7D%7D%7BP_%7B0%7D%7D%3De%5E%7B%5Cdfrac%7B-3%5Ctimes10%5E%7B-26%7D%5Ctimes9.8%5Ctimes5%5Ctimes10%5E%7B3%7D%7D%7B1.3807%5Ctimes10%5E%7B-23%7D%5Ctimes300%7D%7D)
![\dfrac{P_{h}}{P_{0}}=\dfrac{701}{1000}](https://tex.z-dn.net/?f=%5Cdfrac%7BP_%7Bh%7D%7D%7BP_%7B0%7D%7D%3D%5Cdfrac%7B701%7D%7B1000%7D)
Hence, The ratio of the pressure at the top to the pressure at the bottom is ![\dfrac{701}{1000}](https://tex.z-dn.net/?f=%5Cdfrac%7B701%7D%7B1000%7D)
Answer:
Explanation:
<u>Temperature Scales
</u>
There are three temperature scales in the modern sciences: Fahrenheit, Celsius, and Kelvin. Fahrenheit temperature scale assigns the value 32 for the freezing point of water and 212 for the boiling point of water and divides that interval into 180 parts. Celsius scale has a similar reference, giving 0 to the freezing point of water and 100 for the boiling point of water. The conversion between them is as follows
![\displaystyle F=\frac{9}{5}C+32](https://tex.z-dn.net/?f=%5Cdisplaystyle%20F%3D%5Cfrac%7B9%7D%7B5%7DC%2B32)
![K=C+273.15](https://tex.z-dn.net/?f=K%3DC%2B273.15)
The coldest temperature yet measured on the surface of any body in the solar system is -235°C. Converting to Fahrenheit
![\displaystyle F=\frac{9}{5}(-235)+32=-391^oF](https://tex.z-dn.net/?f=%5Cdisplaystyle%20F%3D%5Cfrac%7B9%7D%7B5%7D%28-235%29%2B32%3D-391%5EoF)
![K=-235+273.15=38.15^oK](https://tex.z-dn.net/?f=K%3D-235%2B273.15%3D38.15%5EoK)
It could rotate while not advancing distance
Answer:
The correct answer is: justice
Explanation:
The Belmont Report refers to a report that was published 25 year ago, focusing on the ethical treatment and protection of participants in medical and behavioral research. This report centers around 3 principles:
1. Beneficence- striving to maximize benefits for participants of the research study and minimizing any harms/ risks that might occur.
2. Justice- The fair selection of potential participants for a study. This ensures equitable and fair distribution of risks/ benefits to all potential participants of a research study. Subjects of a study must not be chosen merely out of convenience or easy access. The inclusion/ exclusion criteria should be chosen according to the nature of the study and steps/ treatments that it will involve.
3. Respect for persons- Each participant of a research study should be able to provide informed consent prior to their participation, protected from controllable harm and treated with respect.
Therefore, moral requirement that there be fair outcomes in the selection of research subjects, expresses the principle of justice.
The banking angle of the curved part of the speedway is determined as 32⁰.
<h3>
Banking angle of the curved road</h3>
The banking angle of the curved part of the speedway is calculated as follows;
V(max) = √(rg tanθ)
where;
- r is radius of the path
- g is acceleration due to gravity
V² = rg tanθ
tanθ = V²/rg
tanθ = (34²)/(190 x 9.8)
tanθ = 0.62
θ = arc tan(0.62)
θ = 31.8
θ ≈ 32⁰
Learn more about banking angle here: brainly.com/question/8169892
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