What is the difference between a balanced and unbalanced force ?

please help please lol

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

Another word for electromagnetic energy is a. heat b. force c. matter d. radiation

Which of the following is a characteristic shared by both electron and light microscopes? a. they both employ the use of objective lenses. b. both microscopes require an internal camera to visualize the specimen. c. both microscopes have a resolving power of 0.01 nm. d. they both utilize white light to magnify the specimen.