What was the net force if we ignore friction? the whole problem is stated in the picture.

May someone explain how to do this question?

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.

Ain is , is 's of ? 0.62 0.79 1.27 1.50