Two wave pulses A and B are moving in opposite directions, each with a speed v = 2.00 cm/s. The amplitude of A is twice the amplitude of B. The pulses are shown in the figure at t = 0. Sketch the resultant wave at t = 1.0 s.
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Two wave pulses travel on a string toward each other. The wave pulses can be described as:
where k = 5 rad/m and w = 3 rad/s.
(a) At what instant do the two cancel everywhere? (Assume x is in meters ad t is in seconds?
(b) At what point do the two always cancel?
Two pulses move in opposite directions on a string and are identical in shape except that one has positive displacements of the elements of the string and the other has negative displacements. At the moment that the two pulses completely overlap on the string,
(a) the energy associated with the pulses has disappeared
(b) the string is not moving
(c) the string forms a straight line
(d) the pulses have vanished and will not reappear.
Two pulses move in opposite directions on a string and are identical in shape and size except that one has a positive displacement of the elements of the string and the other has negative displacement. At the moment the two pulses completely overlap on the string, what happens?
a) The energy associated with the pulses has disappeared.
b) The string is not moving.
c) The string forms a straight line.
d) The pulses have vanished and will not reappear.
