(Q3-A) Choose the correct answer for eight only 1-Two hollow balls made of (a- Steel and b- Aluminum) both have the same dimension and were floating in water, the buoyancy force was A) Greater in the steel ball B) greater in the Aluminum ball C) Equal for both of them 2-Two hollow balls of (A Steel and B Aluminum) have the same dimension were immersed in water, the buoyancy force was A) greater steel ball B) greater Aluminum ball C) Equal for both of them 3-Two Steel and Aluminum balls having the same weight, were floating In Mercury, the buoyancy force was A) greater for steel ball 4-Two balls made of (Steel and Aluminum) have the same weight were immersed in water, the buoyancy force was: A) Greater steel ball B) greater in the Aluminum ball 5-Two Steel and Aluminum balls having the same mass, were floating In Mercury, the buoyancy force was A) greater for steel ball 6-Two balls made of (Steel and Aluminum) have the same mass were immersed in water, the buoyancy force was: A) Greater steel ball B) greater in the Aluminum ball 7-A steel ball immersed in three different liquids A, B and C (pA > pB > pC) the resulted buoyancy force were A) Greater in liquid A B) Greater in liquid B C) Greater in liquid C D) equal in all B) greater for the Aluminum ball C) Equal for both of them C) Equal for both of them B) greater for the Aluminum ball C) Equal for both of them C) Equal for both of them of them. 8-A hollow steel ball was floating in three different liquids A, B and C (pA > pB > pC) the resulted buoyancy force were A) Greater in liquid A B) Greater in liquid B C) Greater in liquid C D) Equal in all of them 9- Reynolds number is the ratio of inertia force to. (a) Pressure force (b) viscous force (c) gravity force 10. - Absolute pressure is equal to (a) The atmospheric pressure (c) The atmospheric pressure plus the gauge pressure (d) The atmospheric pressure plus or minus the gauge pressure 11- A large Reynold number is an indication for (a) Smooth and streamline flow (b) Laminar flow (c) Steady flow (d) highly turbulent (b) The gauge pressure