physic lab 145.1 prelab 10 pdf link if needed http://www.physics.qc.edu/files.ph
ID: 2010750 • Letter: P
Question
physic lab 145.1
prelab 10 pdf link if needed http://www.physics.qc.edu/files.php
You will be allowed three submissions for this question. Assume the ruler is exactly 1 m long, and the mass hangers have negligibbe mass.
a) Suppose the ruler in procedure 2 is asymetrical, and it is balanced at the 41.3 cm mark (at the center of mass). Now, mass M is hung on the ruler at the 100 cm mark. Where must you hang mass 1.69M so the system remains in equilibrium?
At the _________________ cm mark
b) The method of procedure 2 can be used to accurately determine the mass of a light coin (as in procedure 4). Suppose the ruler is perfectly symmetrical, and it balances at the center. The coin of unknown mass is placed at the 0 cm mark, it is balanced by a mass m = 22.9 g placed at the 76.6 cm mark. Find the mass of the coin.
__________________________ g
c)Suppose the ruler in procedure 3 is asymmetrical, balancing at the 57.2 cm mark. The ruler is now supported at the 45.3 cm mark, and a mass of 455 g is placed at the 31.3 cm mark. Find the mass of the ruler. ______________________ g