What was the optimal mix of hydrogen and oxygen to launch the pipette rockets in the Combustion lab?

The diagram shows the structures of horse and cat forelimbs. what does the diagram suggest about the evolutionary relationship between these two mammals? a. they have homologous structures, indicating a common ancestor. b. they have analogous structures, indicating a common ancestor. c. they have homologous structures, indicating that they do not have a common ancestor. d. they have analogous structures, indicating that they do not have a common ancestor.

Which statement describes james chadwick’s discovery.

What produces wave a)sound b) heats c)transfer of energy d)vibrations