Lee pushes horizontal with a force of 79 n on a 34kg mass for 10 m across a floor. calculate the amount of work lee did

What is the thinnest soap film (excluding the case of zero thickness) that appears black when illuminated with light with a wavelength of 480 ? the index of refraction of the film is 1.34, and there is air on both sides of the film. express your answer in nanometers. hint 1. how to approach th

Does the asteroid belt revolve around the sun?

Which stable element is used to determine the age of volcanic rock? a- argon b- carbon-14 c- potassium d- carbon-12