Calculate the frequency and the energy of blue light that has a wavelength of 400 nm (h = 6.63 x 10-34 3-s).

How many moles of air are there in a human lung with a volume of 2.4 l at stp? explain your answer

Jose and eric were given four samples in lab. the results of their analysis are shown in the table. based on the data they collected, which sample is most likely a metal?

Some animals that try to adapt to climate changes eventually die due to starvation, as climate change alters the web.