Answer:
Explanation:
given data:
density of water \rho = 1 gm/cm^3 = 1000 kg/m^3
height of water = 20 cm =0.2 m
Pressure p = 1.01300*10^5 Pa
pressure at bottom
= 1.01300*10^5 - 1000*0.2*9.8
= 99340 Pa
h_[fluid} = 0.307m
The modifications that are implemented after Tacoma bridge disaster are added trusses and openings below road decks to decrease oscillations.
<h3>Why Tacoma Bridge disaster occurred?</h3>
While marching, the natural frequency of the vibrations of marching soldiers matched up with the resonant frequency of the bridge. This resulted in the collapsing of the bridge in seconds.
Because of the disaster of the Tacoma Narrows Bridge, the bridge was strengthened by adding trusses as well as openings below road decks so as to decrease vibrations caused by running vehicles on the bridge.
Thus, the modifications that are implemented after Tacoma bridge disaster are added trusses and openings below road decks to decrease oscillations
Learn more about Tacoma Bridge disaster.
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Answer:
The sodium forms cations and chlorine forms anions.
Explanation:
- During the formation of the bonding, the sodium atom loses one electron and forms a positively charged ion called cation.
- The chlorine atom receives one electron and forms a negatively charged ion called anion.
- The electro-negativity of the atom determines the bonding nature of the atoms.
- In case of sodium and chlorine, it forms the ionic bonding where there is a transfer of an electron from one atom to the other.
- Hence the charge is given by Na⁺ and Cl⁻
Answer:
the time period is 22.63 years
Explanation:
The computation of the number of years taken is as follows:
According to the Keplers law
Here T denotes the time period
And, R denotes the average distance among the sun and planet
Now let us assume for earth
R_1 & T_1 be 1 year
So, for Planet
Now applied Keplers law
So, the time period is 22.63 years
Answer:
Explanation:
The potential energy associated with a body (m) located at a given height (h) above a reference point is defined as:
At the reference point the potential energy is zero. In this case the body is below the reference point (the ceiling), therefore, the value of h is negative:
