Una corriente I fluye por un cable de radio R. Si se distribuye de tal manera que la densidad de corriente volumétrica sea proporcional a 1(ρ+R)2, es decir J⃗ alfa 1(ρ+R)2z^
La constante de proporcionalidad correcta β que vuelve dimensionalmente consistente la ecuación es:

Asystematic approach to problem solving is called a (an)

Although longitudinal waves can travel through all media types what is the disadvantage of this type of wave transmission? a) he efficiency of he wave transmission is greatly diminished as the media becomes less dense b) the oscillation of one set of particles has a huge impact on neighboring particles c) particles become too close together as they bump into each other making it more likely to hit other particles down the line

What kind of simple machine is a catapult?