The reezer in a refrigeratror is located at the top section so that

The freezer in a refrigeratror is located at the top section so that

The freezer in a refrigerator is located at the top section so that

The equation y=(1)/(32)x^(2) models cross sections of parabolic mirrors that are used for solar energy. There is a heating tube located at the focus of each parabola, how high is this tube located above the vertex of the parabola ?