A 0.6 kg jar is slid horizontally across a table. If the coefficient of kinetic friction between the jar and the table is 0.20, what is the magnitude of the jar’s acceleration?

Determine the age of a fossil if it had only one eighth of its original carbon-14 content remaining?

If we relied solely on the nonrenewable resources found in the u.s., which one would we run out of first at current usage levels? a. natural gas b. oil c. uranium d. coal

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?