Efectul magnetic consta in aparitia unui camp magnetic in jurul unui conductor parcurs de curent electric. Ati putea preciza ce factori pot influenta acest camp magnetic ?

The intensity, or loudness, of a sound can be measured in decibels (db), according to the equation , where i is the intensity of a given sound and is the threshold of hearing intensity. what is the intensity, in decibels, [i(db)], when ? use a calculator. round to the nearest whole number. 8 9 19 80

The pressure proportional to the area a- inversely b- directly c- increase d-decrease

An architect plans to use solar energy to heat the next house he designs. what principle of absorption and infrared energy can be applied to the design of the new house? how could she apply to those principals?