Need help with these questions 4) An object whose specific gravity is 0.850 is placed in water. What percent of the object'stotal volume is below the surface of the water? Solve mathematically and explain. [Hint: Whatimplicit information about the weight of the object is given by the question?]5) Explain how a submarine uses Archimedes' principle to submerge and surface without theuse of its propeller. How and why does a hot air balloon rise and fall? Even if you don't knowthe exact mechanisms, you should be able to make some general statements based on anunderstanding of Archimedes' principle.T LABORATORY 18Archimedes' PrincipleLABORATORY REPORTData Table 1Calculations Table 1MetalКnоwn SGт (g)т (kg)m1 (g)т, (kg)SG =% ErrorZu7. 10007.27610 0703g 60,698.9000 71.01 0.070163,ll70.360.66 692.498.988610.94Gcuþ OG 311Data Table 2Calculations Table 2m (g)т (kg)M1 (g)т, (kg)12 (g)m2 (kg)SG =0.00219 |65.28 0.06526 51.97 b.0s1476.16452.91Data Table 3Calculations Table 3Metalm (g) | m (kg) mw (g) | mw (kg) | m. (g) | mL (kg)SG =% ErrorNi-MwZu70.36 0.0103C 60.69 0.0GO69 | 62,23 |0.0ca6.42Cu71.01 6.010) 63.ll 6. 06364.45 |0 o45O•83045.11Known SG of Alcohol = 0,7900(C6.8407-0.190)#l00(0.7900JT

Since you have asked multiple questions, we will solve the first question for you. If you want any specific question to be solved then please specify the question number or post only that question.Draw the free-body diagram of the object as:Apply the force equilibrium condition on the along vertical direction. Therefore, 85% of the object’s total volume is submerged in the water.