Academic Integrity: tutoring, explanations, and feedback — we don’t complete graded work or submit on a student’s behalf.

(a) Find F top , the magnitude of the totaldownward force on the top of the cube

ID: 1673392 • Letter: #

Question

(a) Find Ftop, the magnitude of the totaldownward force on the top of the cube from the liquid and theatmosphere, assuming atmospheric pressure is 1.00 atm.
N

(b) Find Fbottom, the magnitude of thetotal upward force on the bottom of the cube.
N

(c) Find T, the tension in the rope.
N

(d) Calculate Fbu, the magnitude of thebuoyant force on the cube using Archimedes' principle.
N
What relation exists among all these quantities? (Select all thatapply.) Fbu = Ftop - FbottomFbu = Fbottom + TFbu = m - TFbu = Fbottom - FtopFbu = T - m
Fbu = Ftop - FbottomFbu = Fbottom + TFbu = m - TFbu = Fbottom - FtopFbu = T - m
Fbu = Ftop - FbottomFbu = Fbottom + TFbu = m - TFbu = Fbottom - FtopFbu = T - m

In the figure below, a cube of edgelength L = 0.650 m and mass 520 kg is suspended by a rope in an open tank ofliquid of density 1030 kg/m3. (a) Find Ftop, the magnitude of the totaldownward force on the top of the cube from the liquid and theatmosphere, assuming atmospheric pressure is 1.00 atm. N (b) Find Fbottom, the magnitude of thetotal upward force on the bottom of the cube. N (c) Find T, the tension in the rope. N (d) Calculate Fbu, the magnitude of thebuoyant force on the cube using Archimedes' principle. N What relation exists among all these quantities? (Select all thatapply.) Fbu = Ftop - Fbottom Fbu = Fbottom + T Fbu = m - T Fbu = Fbottom - Ftop Fbu = T - m

Explanation / Answer

Ftop, the magnitude of the total downwardforce on the top of the cube from the liquid and the atmosphere,assuming atmospheric pressure is 1.00 atm. 1 atm=105 Pa Ftop=(105 +L/2*1030*9.8)*L2=43.64*103 N (b)bottom, the magnitude of the total upward forceon the bottom of the cube Fbottom==(105+L*3/2*1030*9.8)*L2=46.41*103 N (c)T, the tension in the rope. T=-(Fbottom -Ftop)+ weight of the cube=2328 N (d) Fbu, the magnitude of the buoyantforce on the cube using Archimedes' principle F=1030*9.8*L3=2772 N (e)Fbu=Fbottom-Ftop