what is the thickness of an anti-reflective coating (n = 1.3) that must be put on a lens (n = 1.5) in order to minimize reflection at a wavelength of 550 nanometers?

Given that 1 mi = 1760 yd, determine what conver- sion factor is appropriate to convert 1849 yd to miles; to convert 2.781 mi to yards.

Imagine that twenty i. u.’s of enzyme z were catalyzing the above reaction for one minute, under vmaxconditions, in a 3.00 ml assay volume. the assay is buffered with 20 mm phosphate buffer, ph 7.60. what will the ph be at the end of that one minute?

What is the molar mass of a gas that has density of 2.054 g/l