Light with =600nm falls on the thin soap film (shaped as a wedge) at the angle =30 degrees to normal. Interference fringes are observed in reflection. Distance between adjacent fringes is x=4 mm. Index of the film n=1.33, Calculate angle  of the wedge.

Determine the maximum r-value of the polar equation r =3+3 cos 0

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Auniform crate c with mass mc is being transported to the left by a forklift with a constant speed v1. what is the magnitude of the angular momentum of the crate about point a, that is, the point of contact between the front tire of the forklift and the ground