39. ssm In the lungs there are tiny sacs of air, which are called alveoli. A oxygen molecule (mass = 5.3 X 10-26 kg) is trapped within a sac, and t uncertainty in its position is 0.12 mm. What is the minimum uncertain in the speed of this oxygen molecule?
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- 21-30 onlyProblem 4: Speed deamplifier. In the figure above on the right, block 1 of mass m1 slides along an x-axis on a frictionless floor at speed 4 m/sec.Then it undergoes a one-dimensional elastic collision with stationary block 2 of mass m2 = 2m1. Next, block 2 undergoes a one-dimensional elastic collision with stationary block 3 of mass mz = 4m1. What then is the speed of block 3? Answer: 16 m/sec or 1.78 m/sec.