Question 1
A hypothesis is a plausible explanation for a particular fact, observation, or process. Write a hypothesis
about how the various concentrations of acid will affect the amount of limestone that is dissolved from
each jar.

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?