Which is a better conductor of heat: air or a copper wire? why?

How does a hydroelectric power plant converts energy into energy.

The blackbody curve for a star name zeta is shown below. what is the peak wavelength for this star ?

Need ! asap will mark 10 pts using the room temperature line (orange line) and your periodic table, make lists that identify the state of matter (gas, liquid, or solid) in which each element you plotted exists at room temperature. explain your answers