Discover Questions

Calculate the mole fraction of water in a mixture of 12g of water, 108g of acetic acid and 92g of ethyl alcohol? Is a photon an electromagnetic wave and how does it compare to a gravity wave? While a dog runs forward, its owner pulls back with a 22.4 N force at a 115°direction, -42.3 J of work. How far did the dog move? If f(x)=2x+3,g0f(x)=2x-1 find f0g(2)? How to expect the range of following without graphing :
Sqrt(1-x^2)?