Your friend wants to join the school track team, and has asked for your help to determine how fast she can run. What kind of information would you need to collect to help your friend???

Ineed extreme for task 2. my student number is 571721. many to whoever solves this correctly, im in debt to you.

The solar panels used by mark function because of the photoelectric effect. light shines on the cells causing electrons to be ejected from the metal, which produces an electric current. at night on mars, no light will fall on the solar cells and no electric current will be generated. according to your notes, what type of light is typically needed to cause the photoelectric effect? a)visible b)ultraviolet c)infrared

Could we see a galaxy that is 20 billion light-years away?