Aboy kicks a football from ground level with an initial velocity of 20 m/s at an angle of 30° above the horizontal. what is the horizontal distance to the point where the football hits the ground if we neglect air resistance? a.60 m b.18 m c.30

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?