Russian Astronaut, Elena Serova, is preparing her breakfast burrito on the International Space Station. How much force must her comrade, Alexander Sam, apply to pass her a 0.25 kg packet of salsa with an acceleration of 0.5? a2 N
b1 N
c0.125 N
d0.5 N

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?