Which step should you take before you begin a scientific investigation?
print the directions after you complete the experiment.
test out all of the emergency equipment you may need.
clarify any confusing information in the instructions.
purchase the equipment and chemicals you will need.
the correct answer is c. clarify any confusing information in the instructions.

Two 1.20-m nonconducting wires meet at a right angle. one segment carries + 2.50 µc of charge distributed uniformly along its length, and the other carries - 2.50 µc distributed uniformly along it, as shown in fig. 21.50. ( a. find the magnitude and direction of the electric field these wires produce at point p, which is 60.0 cm from each wire. ( b. if an electron is released at p, what are the magnitude and direction of the net force that these wires exert on it?