A block of wood of density 0.6 gcm‾³, weighing 3.06N in air, floats freely in a liquid of density 0.9 gcm‾³. Calculate volume of the portion immersed (g = 10ms‾²)
A. 510cm³ B. 340cm³ C. 254cm³ D. 170cm³ Correct Answer: Option B B. 340cm³ Explanation V = M/D = 3.06/10 × 100/00.9 = 340Which of the following devices is used to determine the relative density of an acid?
A. manometer B. hydrometer C. hypsometer D. hygrometer Correct Answer: Option B B. hydrometerThe diagram above illustrates trapped air in a syringe placed in water that is gradually heated. It is observed that the piston rises as the temperature of the water rises. Which of the following statements explains this observation?
A. frequency of collision of trapped air molecules with walls of the syringe is more B. molecules of trapped air expand more C. speed of the trapped air molecules decreases D. number of molecules of trapped air increases Correct Answer: Option B B. molecules of...The derived unit of pressure can be expressed as?
A. kgms‾² B. kgm‾¹s‾² C. kgm‾²s‾² D. kgm‾¹s² Correct Answer: Option B B. kgm‾¹s‾²Products
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