4. Un globo contiene 10L de un gas a presión atmosférica y 0oC. Si el globo puede duplicar su volumen antes de estallar, llegará a explotar si lo calentamos hasta 50oC? Si no llegará a explotar a esa temperatura indica a qué temperatura estallaría?

Currents in dc transmission lines can be 100 a or higher. some people are concerned that the electromagnetic fields from such lines near their homes could pose health dangers. for a line that has current 150 a and a height of 8.0 m above the ground, what magnetic field does the line produce at ground level? express your answer in teslas and as a percentage of the earth’s magnetic field, which is 0.50 g. is this value cause for worry?