Which of newton's laws describes why John is able to push his foot against the ground and propel his skateboard forward?

-1st
-2nd
-3rd

Identify the colloquial speech. yo! come over here! i have to tell ya somethin’. a. yo c. somethin’ b. ya d. all of the above

Which feature of a heating curve indicates a change ofn state

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