- Messages
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- Reaction score
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- Points
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can you explain the answer for 5a more clearly?? I didn't understand itFor the first question, work done always equals some of all the energy changes of the system. There was a decrease in GP and increase in EP. Thus WD equals their sum.
For the second question, both points are at the same distance from nodes. Considering that this is a stationary wave, the particles will only move up and down in the same place. I don't think there is any question of different frequencies as none of the two points are nodes.As the points are at similar distances from the nodes, there amplitude should be the same.
About the second part, I solved it wrong myself . I think it is 180 degrees because its a standing wave and not a progressive one. X is at its highest possible point, and Y at its lowest. Therefore there is a phase difference of 180.