A narrow beam of light is incident from air on the surface of a rectangular
glass prism of refractice index 1.5. The
angle between the reflected light and
the refracted light is 90
. Calculate the
angle of Incidence
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Your town is considering building a biodiesel power plant describe at least two advantages and two disadvantages

If the chemical properties of a substance remain unchanged and appearance or shape of a substance changes it is called a ?

A14 kg rock starting from rest free falls through a distance of 5.0 m with no air resistance. find the momentum change of the rock caused by its fall and the resulting change in the magnitude of earths velocity. earth mass is 6.0 * 10^24 kg. show your work assuming the rock earth system is closed.