A rubber band with a mass of .003 kg is projected at a velocity of 22
m/s. What is the kinetic energy of the rubber band?

1 452 J
0.066 Ј
0.033 Ј
0.726 J

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?