Aforce 10n drags a mass 10 kg on a horizontal table with acceleration 0.2m\s. if the acceleration due to gravity is 10m\s2, a coefficient of friction between the moving mass and a table is?

Along wire carrying a 4.2 a current perpendicular to the xy-plane intersects the x-axis at x=−1.7cm. a second, parallel wire carrying a 3.0 a current intersects the x-axis at x=+1.7cm. part a at what point on the x-axis is the magnetic field zero if the two currents are in the same direction? express your answer to two significant figures and include the appropriate units.