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Find: SG air Wcyl,A=350 [N] fluid Wcyl,S=200 [N] r h

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Presentation on theme: "Find: SG air Wcyl,A=350 [N] fluid Wcyl,S=200 [N] r h"— Presentation transcript:

1 Find: SG air Wcyl,A=350 [N] fluid Wcyl,S=200 [N] r h 0.78 0.89 1.01
1.12 Find the specific gravity of the fluid, SG. [pause] In this problem, --- r= 20 [cm] submerged cylinder h= 12 [cm]

2 Find: SG air Wcyl,A=350 [N] fluid Wcyl,S=200 [N] r h 0.78 0.89 1.01
1.12 a cylinder is submerged in a fluid. The cylinder measures --- r= 20 [cm] submerged cylinder h= 12 [cm]

3 Find: SG air Wcyl,A=350 [N] fluid Wcyl,S=200 [N] r h 0.78 0.89 1.01
1.12 20 centimeters in the radius, and 12 centimeters ---- r= 20 [cm] submerged cylinder h= 12 [cm]

4 Find: SG air Wcyl,A=350 [N] fluid Wcyl,S=200 [N] r h 0.78 0.89 1.01
1.12 in height. When submerged, the cylinder exhibits an apparent weight of ---- r= 20 [cm] submerged cylinder h= 12 [cm]

5 Find: SG air Wcyl,A=350 [N] fluid Wcyl,S=200 [N] r h 0.78 0.89 1.01
1.12 200 Newtons. When the cylinder is in open air, it’s weight is, --- r= 20 [cm] submerged cylinder h= 12 [cm]

6 Find: SG air Wcyl,A=350 [N] fluid Wcyl,S=200 [N] r h 0.78 0.89 1.01
1.12 350 Newtons. [pause] To solve this problem, we’ll first write out, ---- r= 20 [cm] submerged cylinder h= 12 [cm]

7 Find: SG Wcyl,A=350 [N] Wcyl,S=200 [N] ΣFy = 0 r= 20 [cm] h= 12 [cm]
air r fluid the sum of the forces in the vertical direction, which equals zero, because, --- h

8 Find: SG Wcyl,A=350 [N] Wcyl,S=200 [N] ΣFy = 0 r= 20 [cm] h= 12 [cm]
air r fluid the acceleration of the cylinder equals 0. [pause] A bouyant force, F b, ---- h

9 Find: SG Wcyl,A=350 [N] Wcyl,S=200 [N] ΣFy = 0 = Fb + Wcyl,S - Wcyl,A
r= 20 [cm] h= 12 [cm] air r fluid acts upward on the cylinder, as well as the normal force experienced by --- h Fb

10 Find: SG Wcyl,A=350 [N] Wcyl,S=200 [N] ΣFy = 0 = Fb + Wcyl,S - Wcyl,A
r= 20 [cm] h= 12 [cm] air r fluid the bottom of the tank, which is equal to the weight of the submerged cylinder. Lastly, the self-weight of the cylinder, --- h Fb Wcyl,S

11 Find: SG Wcyl,A=350 [N] Wcyl,S=200 [N] ΣFy = 0 = Fb + Wcyl,S - Wcyl,A
r= 20 [cm] h= 12 [cm] air r fluid acts in the downward direction. [pause] The bouyant force is a function of, --- Wcyl,A h Fb Wcyl,S

12 Find: SG Wcyl,A=350 [N] Wcyl,S=200 [N] ΣFy = 0 = Fb + Wcyl,S - Wcyl,A
r= 20 [cm] h= 12 [cm] air r fluid the specific gravity, therefore, we’ll solve for the bouyant force, ---- Wcyl,A h Fb Wcyl,S

13 Find: SG Wcyl,A=350 [N] Wcyl,S=200 [N] ΣFy = 0 = Fb + Wcyl,S - Wcyl,A
r= 20 [cm] Fb = Wcyl,A - Wcyl,S h= 12 [cm] air r fluid which equals, the weight of the cylinder in air, minus, the weight of the cylinder, when submerged. [pause] After plugging in --- Wcyl,A h Fb Wcyl,S

14 Find: SG Wcyl,A=350 [N] Wcyl,S=200 [N] ΣFy = 0 = Fb + Wcyl,S - Wcyl,A
r= 20 [cm] Fb = Wcyl,A - Wcyl,S h= 12 [cm] air r fluid these weights, we compute the bouyant force, equals, --- Wcyl,A h Fb Wcyl,S

15 Find: SG Wcyl,A=350 [N] Wcyl,S=200 [N] ΣFy = 0 = Fb + Wcyl,S - Wcyl,A
r= 20 [cm] Fb = Wcyl,A - Wcyl,S h= 12 [cm] Fb = 150 [N] air r fluid 150 Newtons. [pause] The bouyant force, equals, --- Wcyl,A h Fb Wcyl,S

16 Find: SG Wcyl,A=350 [N] Wcyl,S=200 [N] ΣFy = 0 = Fb + Wcyl,S - Wcyl,A
r= 20 [cm] Fb = Wcyl,A - Wcyl,S h= 12 [cm] Fb = 150 [N] air r fluid Fb = ρ * g * Vcyl rho times g, times V cylinder. In this equation, V cylinder represents, ---- Wcyl,A h Fb Wcyl,S

17 Find: SG Wcyl,A=350 [N] Wcyl,S=200 [N] ΣFy = 0 = Fb + Wcyl,S - Wcyl,A
r= 20 [cm] Fb = Wcyl,A - Wcyl,S h= 12 [cm] Fb = 150 [N] air r fluid Fb = ρ * g * Vcyl the volume of the cylinder, which is a function of the radius, ---- Wcyl,A volume of h cylinder Fb Wcyl,S

18 Find: SG Wcyl,A=350 [N] Wcyl,S=200 [N] ΣFy = 0 = Fb + Wcyl,S - Wcyl,A
r= 20 [cm] Fb = Wcyl,A - Wcyl,S h= 12 [cm] Fb = 150 [N] Vcyl = π * r 2 *h Fb = ρ * g * Vcyl and height, of the cylinder. [pause] After plugging in these dimensions, ---- volume of cylinder

19 Find: SG Wcyl,A=350 [N] Wcyl,S=200 [N] ΣFy = 0 = Fb + Wcyl,S - Wcyl,A
r= 20 [cm] Fb = Wcyl,A - Wcyl,S h= 12 [cm] Fb = 150 [N] Vcyl = π * r 2 *h Fb = ρ * g * Vcyl the volume of the cylinder, equals, ---- volume of cylinder

20 Find: SG Wcyl,A=350 [N] Wcyl,S=200 [N] ΣFy = 0 = Fb + Wcyl,S - Wcyl,A
r= 20 [cm] Fb = Wcyl,A - Wcyl,S h= 12 [cm] Fb = 150 [N] Vcyl = π * r 2 *h Fb = ρ * g * Vcyl Vcyl = 15,080 [cm3] 15,080, centimeters cubed. [pause] If we convert the units to meters cubed, ---- volume of cylinder

21 Find: SG Wcyl,A=350 [N] Wcyl,S=200 [N] ΣFy = 0 = Fb + Wcyl,S - Wcyl,A
r= 20 [cm] Fb = Wcyl,A - Wcyl,S h= 12 [cm] Fb = 150 [N] Vcyl = π * r 2 *h Fb = ρ * g * Vcyl Vcyl = 15,080 [cm3] the volume of the cylinder equals, --- m 1 volume of * cm 100 cylinder

22 Find: SG Wcyl,A=350 [N] Wcyl,S=200 [N] ΣFy = 0 = Fb + Wcyl,S - Wcyl,A
r= 20 [cm] Fb = Wcyl,A - Wcyl,S h= 12 [cm] Fb = 150 [N] Vcyl = π * r 2 *h Fb = ρ * g * Vcyl Vcyl = 15,080 [cm3] meters cubed. [pause] The gravitational acceleration constant, --- m 1 volume of * cm 100 cylinder Vcyl = [m3]

23 Find: SG Wcyl,A=350 [N] Wcyl,S=200 [N] ΣFy = 0 = Fb + Wcyl,S - Wcyl,A
r= 20 [cm] Fb = Wcyl,A - Wcyl,S h= 12 [cm] Fb = 150 [N] Vcyl = π * r 2 *h Fb = ρ * g * Vcyl Vcyl = 15,080 [cm3] g, equals, 9.81 meters per second squared, and the variable rho, --- m 1 g= 9.81 [m/s2] * cm 100 Vcyl = [m3]

24 Find: SG Wcyl,A=350 [N] Wcyl,S=200 [N] ΣFy = 0 = Fb + Wcyl,S - Wcyl,A
r= 20 [cm] Fb = Wcyl,A - Wcyl,S h= 12 [cm] Fb = 150 [N] Vcyl = π * r 2 *h Fb = ρ * g * Vcyl Vcyl = 15,080 [cm3] the density of the fluid, equals, the specific gravity of the fluid, --- m 1 g= 9.81 [m/s2] * cm 100 Vcyl = [m3]

25 Find: SG Wcyl,A=350 [N] Wcyl,S=200 [N] ΣFy = 0 = Fb + Wcyl,S - Wcyl,A
r= 20 [cm] Fb = Wcyl,A - Wcyl,S h= 12 [cm] Fb = 150 [N] Vcyl = π * r 2 *h Fb = ρ * g * Vcyl Vcyl = 15,080 [cm3] times, the density of water, where the density of water, equals, --- m 1 g= 9.81 [m/s2] * cm 100 ρ= SG * ρw Vcyl = [m3]

26 Find: SG Wcyl,A=350 [N] Wcyl,S=200 [N] ΣFy = 0 = Fb + Wcyl,S - Wcyl,A
r= 20 [cm] Fb = Wcyl,A - Wcyl,S h= 12 [cm] Fb = 150 [N] Vcyl = [m3] Fb = ρ * g * Vcyl Vcyl = 15,080 [cm3] 999 kilograms per meters cubed. [pause] After making these subtitutions, --- m 1 g= 9.81 [m/s2] * cm 100 ρ= SG * ρw ρw= 999 [kg/m3]

27 Find: SG Wcyl,A=350 [N] Wcyl,S=200 [N] ΣFy = 0 = Fb + Wcyl,S - Wcyl,A
r= 20 [cm] Fb = Wcyl,A - Wcyl,S h= 12 [cm] Fb = 150 [N] Vcyl = [m3] Fb = ρ * g * Vcyl Vcyl = 15,080 [cm3] our equation for the bouyant force, reduces down to, --- m 1 g= 9.81 [m/s2] * cm 100 ρ= SG * ρw ρw= 999 [kg/m3]

28 Find: SG = 150 [N] SG * 999 [kg/m3] * 9.81 [m/s2] * 0.01508 [m3]
Fb = 150 [N] Vcyl = [m3] Fb = ρ * g * Vcyl Vcyl = 15,080 [cm3] one equation and one unknown variable, and that unknown variable, is, ---- m 1 g= 9.81 [m/s2] * cm 100 ρ= SG * ρw ρw= 999 [kg/m3]

29 Find: SG = 150 [N] SG * 999 [kg/m3] * 9.81 [m/s2] * 0.01508 [m3]
Fb = 150 [N] Vcyl = [m3] Fb = ρ * g * Vcyl Vcyl = 15,080 [cm3] the specific gravity of the fluid, SG, which equals, --- m 1 g= 9.81 [m/s2] * cm 100 ρ= SG * ρw ρw= 999 [kg/m3]

30 Find: SG SG = 1.015 SG * 999 [kg/m3] * 9.81 [m/s2] * [m3] = 150 [N] Fb = 150 [N] Vcyl = [m3] Fb = ρ * g * Vcyl Vcyl = 15,080 [cm3] [pause] m 1 g= 9.81 [m/s2] * cm 100 ρ= SG * ρw ρw= 999 [kg/m3]

31 Find: SG 0.78 0.89 1.01 1.12 SG = 1.015 SG * 999 [kg/m3] * 9.81 [m/s2] * [m3] = 150 [N] Fb = 150 [N] Vcyl = [m3] Fb = ρ * g * Vcyl Vcyl = 15,080 [cm3] when reviewing the possible solutions, --- m 1 g= 9.81 [m/s2] * cm 100 ρ= SG * ρw ρw= 999 [kg/m3]

32 Find: SG = 150 [N] 0.78 0.89 answerC SG = 1.015 1.01 1.12
SG * 999 [kg/m3] * 9.81 [m/s2] * [m3] = 150 [N] Fb = 150 [N] Vcyl = [m3] Fb = ρ * g * Vcyl Vcyl = 15,080 [cm3] the answer is C. [fin] m 1 g= 9.81 [m/s2] * cm 100 ρ= SG * ρw ρw= 999 [kg/m3]

33 * ΔP13=-ρA* g * (hAB-h1)+… depth to centroid kg*cm3 1,000 g * m3
a monometer contains 5 different fluids, which include, --- kg*cm3 1,000 * g * m3


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