Describe the process of nuclear fission and how the famous equation E = mc2 relates to this process.

What are chlorofluorocarbons and what impact do they have on the atmosphere?

What is special about a dc circuit ?

Ahole in the ground in the shape of an inverted cone is 14 meters deep and has radius at the top of 11 meters. the cone is filled to the top with sawdust. the density of the sawdust depends upon the depth, x, following the formula ρ ( x ) = 2.5 + 1.2 e − 0.7 x kg/m3. find the total mass of sawdust in the conical hole.