Searches related to Windjammer ships usually have many sails. Suppose one sail weighs 3000 N, and it is rigged with a rope and pulley system that has 5 supporting lines. The sail must be raised 35 meters. How much rope will be needed to make this system work? You must show your work to get full credit for this question!

Ultraviolet radiation is dangerous because it has a high enough energy to damage skin cells. what is the best explanation of the relationship between wavelength and wave energy? a) wave energy is related only to frequency, not wavelength. b) longer wavelengths have lower frequencies but higher energy. c) the shorter the wavelength, the lower the frequency and the higher the energy. d) the shorter the wavelength, the higher the frequency and the higher the energy.