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A man shines a flashlight from a boat into the water, illuminating a rock as in Figure P 22.21 . What is the angle of incidence $\theta_{1} ?$

\text { The angle of incidence is } 58.6^{\circ}

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this problem. We had us to find that that one. We can find a better one by first finding event or two from the human figure we can right thing. That, too, is the call to 2.5, divided by three. From here, that you will be called detaining worse off 2.5, divided by three, which is equal to the denying 0.81 degrees. Ah, Then we can write a snail slow and once sign that the one is equal to and to sign that too. Where and one is equal to one end and two is equal to 1.333 Ah, From here we can just solve for sign Better one. So sign that a one will be called to 1.3323 Sign 39.81 So then our better one will be called to sign in. Worse off. Zina 0.8575 This gives us an angle off 58 points, 60 please. So the angle off incident is 58.6 degrees