What quantity resists change in motion

The four giant gas points that are made primarily of lightweight elements are

What is tan(61)? а. 1.80 b. 0.49 c. 0.61 d. 0.87

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