Calculate the critical angle for a glass air

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Reference no: EM1314699

Q1. A 2.8 kg block slides along a frictionless horizontal with a speed of 5.5 m/s. After sliding a distance of 8m, the block makes a smooth transition to a frictionless ramp inclined at an angle of 43 degrees to the horizontal. The acceleration of gravity is 9.81 m/s^2.

How far up the ramp does the block slide before coming momentarily to rest?

Q2. Calculate the critical angle for a glass air surface if a ray of light that is incident in air on the surface is refracted through 24.5 degree when its angle of incidence is 40 degree.

Reference no: EM1314699

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