The plateau phase of an action potential in cardiac muscle cells is due to the . efflux of K through K channels influx of Ca2 through slow Ca2 channels influx of Na through fast Na channels efflux of Ca2 through fast Ca2 channels

Both 1,2−dihydronaphthalene and 1,4−dihydronaphthalene may be selectively hydrogenated to 1,2,3,4−tetrahydronaphthalene. one of these isomers has a heat of hydrogenation of 101 kj/mol (24.1 kcal/mol), and the heat of hydrogenation of the other is 113 kj/mol (27.1 kcal/mol). match the heat of hydrogenation with the appropriate dihydronaphthalene.

How does a hydroelectric power plant converts energy into energy.

Which of the following has wavelength longer than the wavelength of viable light? a) x rays b) gamma rays c) radios waves d) ultraviolet waves