Aflashlight bulb with potential difference of 4.5 v across it has a resistance of 8.0 . how much current isn’t in the bulb filament a)36 a b)9.4 a c)1.8 a d)0.56 a

Achlorine atom has 17 protons and 18 neutrons. what is its mass number? what is its atomic number?

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?

The electric potential a distance r from a small charge is proportional to what power of the distance from the charge? a. r^-1 b. r c. r^-2 d. r^2