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Q. At time a grinding wheel has an angular velocity of 22.0 . It has a constant angular acceleration of 28.0 until a circuit breaker trips at time = 1.60 . From then on, the wheel turns through an angle of 438 as it coasts to a stop at constant angular deceleration.

Q. A 1 cm-thick layer of water stands on a horizontal slab of glass. A light ray in the air is incident on the water 58 degrees from the normal.

After entering the glass, what is the ray's angle from the normal?

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Category:- Physics
Reference No.:- M9273768

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