In deriving the force on one of the long, current-carrying conductors, why didn’t we use the total magnetic field due to both conductors?​

What is tan(61)? а. 1.80 b. 0.49 c. 0.61 d. 0.87

30 points - when can a theory be modified if a new type of technology allows for new observations that raise new questions? a. immediately, while the questions about the theory are being asked b. after new hypotheses related to the theory are tested in experiments c. only after the new observations disprove all parts of the theory d. while scientists begin to think about how the theory could improve

Four friends, a, b, c, and d are standing varying distances away from a speaker which is producing sound waves.