A 50 kg skier skis straight down a slope with an angle of 15.0° relative to the horizontal. The coefficient of kinetic friction between his skis and the snow is 0.100. a.) Calculate the x-and y-component of the force of gravity acting on the skier.

b.) Calculate the normal force acting on the skier.

c.) Calculate the force of friction acting on the skier.

d.) Use Newton’s 2nd Law to calculate the acceleration of the skier.

Why can blue light and yellow light combine to produce white light? question 17 options: they are both primary colors of light. they absorb each other's wavelengths. because blue, yellow, and white are primary colors. they are complementary colors of light.

With the simplified model of the eye, what corrective lens (specified by focal length as measured in air) would be needed to enable a person underwater to focus an infinitely distant object? (be careful-the focal length of a lens underwater is not the same as in air! assume that the corrective lens has a refractive index of 1.62 and that the lens is used in eyeglasses, not goggles, so there is water on both sides of the lens. assume that the eyeglasses are 1.90

9.98 kg of r-134a at 300 kpa fills a rigid container whose volume is 14 l. determine the temperature and total enthalpy in the container. the container is now heated until the pressure is 600 kpa. determine the temperature and total enthalpy when the heating is completed. use data from the steam tables.