1. After watching the video, explain in your own words what happens when a virus gets in your
body. Use the following words in your explanation: Vaccine, Antibody, Immune System, Memory
Cells

What happens to light waves from a star as the star moves away from earth?

Kate is working on a project in her tech education class. she plans to assemble a fan motor. which form of energy does the motor convert most of its electric energy into? a. light energy b. motion energy c. sound energy d. thermal energy

An initially unpolarized light if intensity 500 w/m^2 passes through four polarizers. the transmission axis between adjacent polarizers is 45∘. what percentage of the initial intensity is transmitted by the system?