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1. |
A 5.5 metre length of string has a mass of 0.035kg. If the tension in the string in 77N, the speed of a wave on the string is? |
A. | 110m/s |
B. | 165m/s |
C. | 77m/s |
D. | 102m/s |
Answer» B. 165m/s | |