A fictitious metallic element forms a simple cubic unit cell. One atom of this fictitious element has a mass of 1.33 x 10^{-22}g. An X-ray diffraction experiment performed on a crystal of this element used X-rays with a wavelength of 1.54 Å. Reflected X-rays from the second crystal plane of this element are detected at an angle of 38.0°. Determine the radius (cm) of one atom of this element and the elemental density (g/cm^3).

Effect of rotenone and antimycin a on electron transfer rotenone, a toxic natural product from plants, strongly inhibits nadh dehydrogenase of insect and fish mitochondria. antimycin a, a toxic antibiotic, strongly inhibits the oxidation of ubiquinol. (a) explain why rotenone ingestion is lethal to some insect and fish species. (b) explain why antimycin a is a poison. (c) given that rotenone and antimycin a are equally effective in blocking their respective sites in the electron-transfer chain, which would be a more potent poison? explain.

How does blood clotting prevent the entry of pathogens through cuts and wounds? answer asap,, this is due tomorrow. will mark as brainliest or whatever you call it : )

What statement goes against the kinetic theory of gases