An extreme skier, starting from rest, coasts down a mountain slope that makes an angle of 25.0° with the horizontal. the coefficient of kinetic friction between her skis and the snow is 0.200. she coasts down a distance of 8.7 m before coming to the edge of a cliff. without slowing down, she skis off the cliff and lands downhill at a point whose vertical distance is 4.20 m below the edge. how fast is she going just before she lands

Answerlosing electrons;

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Answerincreasing preload

1) what is light? light is an electromagnetic wave visible to the human eye.  2) what is a reflection? the rebounding of a light ray when it hits a mirror.3) what is the incident ray? contacts the surface of an object.4) what is the reflected ray? bounces off a reflective surface.5) what is the normal ray? perpendicular to the surface of a mirror.6) what is the angle of incidence? an angle formed by the incident ray and the normal.7) what is the angle of reflection? an angle formed by the reflected ray and the normal.8) what is refraction? (bending.)9) what is a converging lens? bring together light rays that pass through.10) what is a diverging lens? spreads out light passing through.11) focal point? the real point where the refracted rays meet when the incident rays run parallel.