A boat, whose speed in still water is 1.75 m/s, must aim upstream at an angle of 26.3° (with respect to a line perpendicular to the shore) in order to travel directly across the stream. (a) Determine the speed of the current
(b) Determine the resultant speed of the boat with respect to the shore.
(a) 0.775 m/s
(b) 1.57 m/s
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A resistor and a capacitor are connected in series across an ideal battery having a constant voltage across its terminals. At the moment contact is made with the battery (a) the voltage across the capacitor is
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A) 5.1 s B) 8.4 s C) 6.9 s D) 3.6 s