When light reflects from a surface, there is a change in its

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.

What is the relationship between ozone and smog?

Protein provides 4 calories per gram. mary is on a diet that requires her to eat at least 40 grams of protein each day.she's eaten 152 calories of protein today.howmuch more protein does mary need to eat to meet her goal