Which two pieces of evidence most directly support the idea that all matter in the universe began as a single point of energy? a. the abundance of helium in the universe and einstein's mass-energy equivalence b. the abundance of helium in the universe and the redshift of light from galaxies c. einstein's mass-energy equivalence and the uniform distribution of cosmic background radiation d. the redshift of light from galaxies and the uniform distribution of cosmic background radiation

Place several e-field sensors at a few points on different equipotential lines, and look at the relationship between the electric field and the equipotential lines. which statement is true? 1-at any point, the electric field is perpendicular to the equipotential line at that point, and it is directed toward lines of higher voltages. 2-at any point, the electric field is perpendicular to the equipotential line at that point, and it is directed toward lines of lower voltages. 3-at any point, the electric field is parallel to the equipotential line at that point.