Answer: The solution can be found in the attached
Explanation:
Answer:huh
U right Even though all the apartments within a single building are indeed stuck together, they are also apart from each other.
For you’re second question That means when the building was not built, at that time it was building, now when it is built we remember the past and give it respect of being built - so a building is called a building when it is already built - well it was building back at that time when it was not built !!!
Explanation:
Answer:
A) attractive force between ions = 5.09x10^-19 N of attractive force
B) there will be no repulsion since both ions have opposite charges.
Explanation:
Detailed explanation and calculation is shown in the image below.
Answer:
mechanical efficiency = 54%
Explanation:
given data
power We = 44 kW
density = 860 kg/m³
rate of flow = 0.07 m³/s
inlet diameter d1 = 8 cm
outlet diameter d2 = 12 cm
pressure = 500 kPa
efficiency η = 90%
to find out
mechanical efficiency
solution
we get here shaft power is here
shaft power = efficiency × electric power
shaft power = 0.9 × 44 = 39.6
and
now we get DEmech that is
DE(mech)= m g h +
(v² - u ²) .....................1
that is we can write as
DEmech = ρVgh +
= VDP +
×
Plugging in values we now have DEmech that is
DEmech = (0.07m^3/s × 500kPa) +
solve we get
DEmech = 21342 W
DEmech = 21.3 kW
mechanical efficiency is
mechanical efficiency = ![\frac{21.3}{39.6}](https://tex.z-dn.net/?f=%5Cfrac%7B21.3%7D%7B39.6%7D)
mechanical efficiency = 0.54
mechanical efficiency = 54%