Please help I'm having a mental breakdown In a series circuit, Vsource =20.0 V, R1 = 30.0 Ω, and R2 = 12.0 Ω. In 10.0 s, how many coulombs of charge pass through the circuit?

I have a test tomorrow morning and I'm pretty sure something like this will be on it so please help me :(

Wavelength,frequency,and energy are related.what happens to a wave as it’s wavelength gets shorter?

Which of these questions might a character ask if the conflict is man versus self? a. which path should i take to better myself? b. which boulder will be too heavy for me to carry? c. which friend is going to ditch me today? d. all of the above

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.