A certain capacitor, in series with a resistor, is being charged. At the end of 40 ms its charge is 75% of the final value. Find the time constant for the process. (in ms)
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- 20. Please explain the correct answer. Thanks.Problem 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.