Answer:
False
Explanation:
This proposition is false because by example the sun exerts a force over the earth and them are not in contact
Compressional waves can travel through all states of matter.
Answer:
1)ammeter
2)ised to check measure of current flow through a circuit
3)o.90 ambere
Explanation:
Optics is a branch of physics that is the study of light and vision. ... The branch of physics dealing with the nature and properties of electromagnetic energy in the light spectrum and the phenomena of vision. In the broadest sense, optics deals with infrared light, visible light, and ultraviolet light.
