the \"a\" variable in part A can be assumed to be 1.0 and disregarded. thanks so

Question

the "a" variable in part A can be assumed to be 1.0 and disregarded. thanks so much. euquation 7.8a is just the three terms added together, so it is not needed. z is height. each term is seperate.

given symbols, what is the absolute pressure at the bottoi the tank? 4. The left side of the mechanical energy equation (Equation 7.8a) has three terms: P/p, av and gz. Show that each of these terms has the dimensions of energy per mass of fluid by a. converting each term to units of Btulbm, beginning with pressure in psi, density in Ibmf3, velocity in ft/s, and pressure in psi, density in ibndlft, velocity in fus, and height in f b. converting each term to units of J/kg, beginning with pressure in Pa, density in kg/m3, velocity in m/s, and height in nm

Explanation / Answer

first term in berbouli equation = P/density = (lbf/ft2)/ lb/ft3 =lbf.ft/ lb

but force.distnace= work done = btu in fps

P/density = btu/lb

second term = V2/2, multiplying and dividing by lb ,second term = mv2/2m= Kinetic energy/ mass= btu/lbm

third tem = gZ, herr also dividing and multiplying with mass gives potenital enegy/mass= btu/lbm

2.

In SI P/density = M/m2/ kg/m3 = N.m/Kg= J/kg

second term = mv2/2m= kinetic energy/mass and gZ= potential energy/mass= J/kg

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