A car changes its speed by 2 meters per second each second. What is its acceleration? A. 4 m/s2
B. 0.5 m/s2
C. 2 m/s2

Why is it important always to use horizontal bars in unit fractions when performing unit conversions?

The sun’s mass is 2.0×10^ 30 kg, its radius is 7.0×10 5 km, and it has a rotational period of approximately 28 days. if the sun should collapse into a white dwarf of radius 3.5×10 3 km, what would its period be if no mass were ejected and a sphere of uniform density can model the sun both before and after?

What is the major limitation to the light microscope?