A. determine the sign of the charge on each rod.
b. compute the ratio of the linear charge densities on the two rods, .

Answer.

The electric field due to a negative charge points radially in from all directions (because a positive test charge placed near it would feel a force pointing toward it). Generally, electric field lines always point from positive charges and toward negative charges.

Your question I s incomplete, please endeavor you update your question with the necessary parameters.

c-14 is carbon-14, or radiocarbon.   it is a radioactive isotope of carbon with an atomic nucleus containing 6 protons and 8 neutrons.

un recipient conține 6,4 moli de gaz. gazul hidrogen reprezintă 25% din totalul kilometrilor din container. în cazul în care presiunea totală este de 1.24 atm ceea ce este