The tension in rope A is Newtons, the helper weighs 100 newton, the board weighs 1500 newtons.. The tension in rope A is 1050 newtons. What is the weight of the painter?

Ireally don’t know this

Green is technically every other color but green but the other wavelengths of the other colors get absorbed by the object and the wavelength of the color green gets reflected

The answer for this is a

The molar mass of a substance is defined as the mass of 1 mol of that substance, expressed in grams per mole, and is equal to the mass of 6.022 × 10 23 atoms, molecules, or formula units of that substance.