physics (please help)
posted by susan .
Two identical but separate strings, with the same tension, carry sinusoidal waves with the same frequency. Wave A has an amplitude that is twice that of wave B and transmits energy at a rate that is _____ that of wave B.
e) eight times
I thought the answer was twice or b because a higher energy wave is characterized by a higher amplitude while a lower energy wave is characterized by a low amplitude.
A sinusoidal water waves are generated in a large ripple tank. The waves travel at 20cm/s and their adjacent crests are 5.0cm apart. The time required for each new whole cycle to be generated is.
20 cm/s= (5.0cm)*f
Please check my answers and help point me in the right direction.