With the height being 10 m tall how much kinetic energy will a device have to cancel assuming the device weighs 2 kg?

Natural forces that can alter ecosystems include seasons and climate changes. t or f

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 structural formula represents 4 electrons shared between two atoms?