3. A 64 lb weight stretches a spring 4 ft in equilibrium. The weight is initially displaced 6 inches above equilibrium and given
a downward velocity of 6 ft/sec. Find its displacement for t > 0 if the medium resists the motion with a force equal to 3 times the speed in ft/sec (that is, the damping constant c = 3). Note that there is no external force in this case.
1 answer:
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Explanation:
Given that,
Number of sodium ions at the negative electrode,
Number of chloride ions at the positive electrode,
(a) The current flowing in the circuit is due to the positive as well as negative charges such that total charge becomes:
Q = 0.01056 C
The current is given by :
So, the current passing between the electrodes is 10.56 mA.
(b) The direction of electric current is towards negative electrodes.