Problem 2: Mystery bubble A mystery fluid is blown into a bubble at sea level. The gauge pressure of the gas in the center the bubble is measured to be 200 Pa when its radius is 6.3 cm. A. What is the surface tension of the mystery fluid

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?