Answer:
Explanation:
The seven factors are work load, family life, transportation, compensation policy and benefits, colleagues and supervisor, working environment and working condition and career growth.
Answer:
The correct answer is the third option: The kinetic energy of the water molecules decreases.
Explanation:
Temperature is, in depth, a statistical value; kind of an average of the particles movement in any physical system (such as a glass filled with water). Kinetic energy, for sure, is the energy resulting from movement (technically depending on mass and velocity of a system; in other words, the faster something moves, the greater its kinetic energy.
Since temperature is related to the total average random movement in a system, and so is the kinetic energy (related to movement through velocity), as the thermometer measures <u>less temperature</u>, that would mean that the particles (in this case: water particles) are <u>moving slowly</u>, so that: the slower something moves, the lower its kinetic energy.
<u>In summary:</u> temperature tells about how fast are moving and colliding the particles within a system, and since it is <em>directly proportional</em> to the amount of movement, it can be related (also <em>directly proportional</em>) to the kinectic energy.
To solve this problem we will apply the concepts related to the calculation of the speed of sound, the calculation of the Mach number and finally the calculation of the temperature at the front stagnation point. We will calculate the speed in international units as well as the temperature. With these values we will calculate the speed of the sound and the number of Mach. Finally we will calculate the temperature at the front stagnation point.
The altitude is,
![z = 20km](https://tex.z-dn.net/?f=z%20%3D%2020km)
And the velocity can be written as,
![V = 3530km/h (\frac{1000m}{1km})(\frac{1h}{3600s})](https://tex.z-dn.net/?f=V%20%3D%203530km%2Fh%20%28%5Cfrac%7B1000m%7D%7B1km%7D%29%28%5Cfrac%7B1h%7D%7B3600s%7D%29)
![V = 980.55m/s](https://tex.z-dn.net/?f=V%20%3D%20980.55m%2Fs)
From the properties of standard atmosphere at altitude z = 20km temperature is
![T = 216.66K](https://tex.z-dn.net/?f=T%20%3D%20216.66K)
![k = 1.4](https://tex.z-dn.net/?f=k%20%3D%201.4)
![R = 287 J/kg](https://tex.z-dn.net/?f=R%20%3D%20287%20J%2Fkg)
Velocity of sound at this altitude is
![a = \sqrt{kRT}](https://tex.z-dn.net/?f=a%20%3D%20%5Csqrt%7BkRT%7D)
![a = \sqrt{(1.4)(287)(216.66)}](https://tex.z-dn.net/?f=a%20%3D%20%5Csqrt%7B%281.4%29%28287%29%28216.66%29%7D)
![a = 295.049m/s](https://tex.z-dn.net/?f=a%20%3D%20295.049m%2Fs)
Then the Mach number
![Ma = \frac{V}{a}](https://tex.z-dn.net/?f=Ma%20%3D%20%5Cfrac%7BV%7D%7Ba%7D)
![Ma = \frac{980.55}{296.049}](https://tex.z-dn.net/?f=Ma%20%3D%20%5Cfrac%7B980.55%7D%7B296.049%7D)
![Ma = 3.312](https://tex.z-dn.net/?f=Ma%20%3D%203.312)
So front stagnation temperature
![T_0 = T(1+\frac{k-1}{2}Ma^2)](https://tex.z-dn.net/?f=T_0%20%3D%20T%281%2B%5Cfrac%7Bk-1%7D%7B2%7DMa%5E2%29)
![T_0 = (216.66)(1+\frac{1.4-1}{2}*3.312^2)](https://tex.z-dn.net/?f=T_0%20%3D%20%28216.66%29%281%2B%5Cfrac%7B1.4-1%7D%7B2%7D%2A3.312%5E2%29)
![T_0 = 689.87K](https://tex.z-dn.net/?f=T_0%20%3D%20689.87K)
Therefore the temperature at its front stagnation point is 689.87K
D , since Voltage is one joule per coulomb
If this question has the same set of options as to the following, the answer would be letter d. Continuity.
Continuity in Psychology accounts for visual perception of immediate environments that piece together a background's individual elements to form a panoramic image.<span> </span>
The choices are:
A.) depth perception.
<span>B.) perception. </span>
<span>C.) similarity. </span>
<span>D.) continuity.
</span>