A long line of charge with uniform linear charge density λ1 is located on the x-axis and another long line of charge with unifor
m linear charge density λ2 is located on the y-axis with their centers crossing at the origin. In what direction is the electric field at point z = a on the positive z-axis if λ1 and λ2 are positive? A-) The positive z-direction
B-) All directions are possible parallel to the x-y plane
C-) The negative z-direction
D-) Halfway between the x-direction and the y-direction
C-) Cannot be determined
F=mg=Gm1m2/r^2 g=Gm2/r^2 g=2Gm2/(2r)^2=2Gm2/4r^2=Gm2/2r^2 So since there is half times the gravity on this unknown planet that has twice earth's mass and twice it's radius, then the person can jump twice as high. 1.5*2= 3m high