Questiond (& points) buoyant force on an object placed in a liquid is (a) always

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Questiond (& points) buoyant force on an object placed in a liquid is (a) always equal to the volume of the liquid (e) always equal to the weight of the liquid displaced (d) always less than the volume of the liquid displaced (b) always equal to the weight of the object Question5 (5 points) a volume of water An object that sinks in water displaces (a) equal to the object's weight (b) equal to the object's volume (c) less than the object's volume (d) greater than the object's weight Question6 (5 points) eure hos a veraier caliper scale set to a particular reuding. What is the reading of the scale? dice Question7 (5 points) A series of four measurements of the mass of a cylinder. The results of these measure- ments are: 20.6 grams, 20.5 grams, 20.4 grams, 20.4 grams. Find the mean for the measured quantity. Question8 (5 points) A cylinder has a length of 5.00 cm, a diameter of 4.00 cm, and a mass of 100.0 grams. What is the density of the cylinder? Show your work. Question9 (5 points) In the Figure below a mass m -0.700 kg acts at 20.0 cm, what is the value of mass m2 that must be placed at the position 70.0 cm shown to put the system in equilibrium? Assume that the meter stick is uniform and symmetric. Show your work. PHYS203L Final Exam Page 2 of 5

Explanation / Answer

4.(c) Always equal to the water displaced( Archimedes principle)

5.(b) equal to the object's volume

6.As the vernier scale coincides with the 6th division of main scale so total reading becomes= 15.6 mm or 1.56 cm

7. Mean= (20.6+20.5+20.4+20.4)/4= 20.475 gm

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