Tungsten-filament lightbulb emits light based on the temperature of the filament. which phenomenon does this demonstrate?

Which statement best describes resistance? resistance is a. how well a current will flow in a material and is measured in volts. b. how well a material conducts an electrical charge and is measured in ohms. c. the ability of a material to attract a positive charge to create a current. d. the ability of a material to repel neutral charges and is measured in ohms.

The long handle on a rake is a(n) a. lever b. screw c. wedge d. inclined plane

The mass of the sun is 1.99×1030kg and its distance to the earth is 1.50×1011m. what is the gravitational force of the sun on the earth?