A standing wave on a string of length L = 3 m is described by the following equation: y(x,t) = 0.08 sin(2Ttx) cos(300Tt). The %3D %3D fundamental frequency, f1, is: O 25 Hz 150 Hz 75 Hz 50 Hz O 300 Hz

Q: where did the 20 come from for 20t

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A: Given data: Threshold wavelength of the metal, λ0=270 nm=270×10-9 m

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Q: 4. Find the node voltages in the circuit below. 12 4 2 8. D2 3

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Q: %3D 3)In the circuit shown in the Figure, the resistors R1 = 500, R = 30 2 %3D ww R2 = 300, and R3 =…

A: R1 = 50 Ω R2 = 30 Ω R3 = 120 Ω E = 120 v

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