Answer:
The pressure at the top of the step is 129.303 kilopascals.
Explanation:
From Hydrostatics we find that the pressure difference between extremes of the water column is defined by the following formula, which is a particular case of the Bernoulli's Principle (
):
(1)
,
- Total pressures at the bottom and at the top, measured in pascals.
- Density of the water, measured in kilograms per cubic meter.
- Height difference of the step, measured in meters.
If we know that
,
,
and
, then the pressure at the top of the step is:
![p_{top} = p_{bottom}-\rho\cdot g\cdot \Delta h](https://tex.z-dn.net/?f=p_%7Btop%7D%20%3D%20p_%7Bbottom%7D-%5Crho%5Ccdot%20g%5Ccdot%20%5CDelta%20h)
![p_{top} = 132000\,Pa-\left(1000\,\frac{kg}{m^{3}} \right)\cdot \left(9.807\,\frac{m}{s^{2}} \right)\cdot (0.275\,m)](https://tex.z-dn.net/?f=p_%7Btop%7D%20%3D%20132000%5C%2CPa-%5Cleft%281000%5C%2C%5Cfrac%7Bkg%7D%7Bm%5E%7B3%7D%7D%20%5Cright%29%5Ccdot%20%5Cleft%289.807%5C%2C%5Cfrac%7Bm%7D%7Bs%5E%7B2%7D%7D%20%5Cright%29%5Ccdot%20%280.275%5C%2Cm%29)
![p_{top} = 129303.075\,Pa](https://tex.z-dn.net/?f=p_%7Btop%7D%20%3D%20129303.075%5C%2CPa)
![p_{top} = 129.303\,kPa](https://tex.z-dn.net/?f=p_%7Btop%7D%20%3D%20129.303%5C%2CkPa)
The pressure at the top of the step is 129.303 kilopascals.
Answer:
Active—A volcano is active if it is erupting, or may erupt soon. ...
Dormant—A dormant volcano is one that may have erupted before, but it is no longer erupting. ...
Extinct—An extinct volcano is not erupting and will never erupt again.
Explanation:
Answer:
hello your question is incomplete attached below is the missing part
answer : short period oscillations frequency = 0.063 rad / sec
phugoid oscillations natural frequency (
) = 4.27 rad/sec
Explanation:
first we have to state the general form of the equation
= ![( S^2 + 2\alpha _{p} w_{np} S + w^{2} _{np} ) (S^{2} + 2\alpha _{s} w_{ns}S + w^{2} _{ns} ) = 0](https://tex.z-dn.net/?f=%28%20S%5E2%20%2B%202%5Calpha%20_%7Bp%7D%20w_%7Bnp%7D%20S%20%2B%20w%5E%7B2%7D%20_%7Bnp%7D%20%29%20%28S%5E%7B2%7D%20%2B%202%5Calpha%20_%7Bs%7D%20w_%7Bns%7DS%20%2B%20w%5E%7B2%7D%20_%7Bns%7D%20%20%29%20%3D%200)
where :
![w_{np} = Natural frequency of plugiod oscillation](https://tex.z-dn.net/?f=w_%7Bnp%7D%20%20%3D%20Natural%20frequency%20of%20plugiod%20oscillation)
![\alpha _{p} = damping ratio of plugiod oscilations](https://tex.z-dn.net/?f=%5Calpha%20_%7Bp%7D%20%3D%20damping%20ratio%20of%20plugiod%20%20oscilations)
comparing the general form with the given equation
= 18.2329
![w^{2} _{ns} = 0.003969](https://tex.z-dn.net/?f=w%5E%7B2%7D%20_%7Bns%7D%20%3D%200.003969)
hence the short period oscillation frequency (
) = 0.063 rad/sec
phugoid oscillations natural frequency (
) = 4.27 rad/sec
Answer:
150 million kilometres
Explanation:
The astronomical unit (symbol: au, or AU or AU) is a unit of length, roughly the distance from Earth to the Sun and equal to 150 million kilometres (93 million miles) or 8.3 light minutes.
Answer:
1) A trait is a specific feature or characteristic, typically genetic.
2) One trait that helps an animal survive is a Chameleon's camouflage. Camouflage helps the chameleon blend in with their surroundings to avoid a predator or to sneak up on prey.
Explanation: