What connections is used in domestic and industrial electrical applicances and why?

Which statement best describes how private industry decides where to spend the money on research and development

Who was the first scientist to measure speed as distance over time?

Selma made a diagram to compare convection and radiation. which label belongs in the area marked x? must involve temperature differences between substances or objects only occurs when molecules are in direct contact involves the movement of fluids based on density differences can occur where there is little or no matter