In order to find the magnitude of force F, we have to solve a system of two equations with both F and the normal force N unknown. find an expression for F in terms of m, g, θ, and μs (no N).
Fcosθ−μsN=0
Fsinθ+N−mg=0

Juan created a chart to him study for a test. which headings best complete the chart? x: transparent objects y: opaque objects x: opaque objects y: transparent objects x: high frequency waves y: low frequency waves x: low frequency waves y: high frequency waves