Question 5: Explain how your battery works. (HINT: You may want to look at lesson 3.02) What are some possible materials you could use to make your battery? DON’T FORGET TO include information about why it is important to use two different types of materials to make a battery. Also don't forget to discuss the electron affinities.

How many hydrogen (h) atoms are in one molecule of sulfuric acid, h2so4? (1 points) 1 2 4 7

Consider a uniformly charged ring in the xy plane, centered at the origin. the ring has radius a and positive charge qdistributed evenly along its circumference. a)what is the direction of the electric field at any point on the z axis? . b)what is the magnitude of the electric field along the positive z axis? use k in your answer, where k=14πϵ0. d)the ball will oscillate along the z axis between z=d and z=−d in simple harmonic motion. what will be the angular frequency ω of these oscillations? use the approximation d≪a to simplify your calculation; that is, assume that d2+a2≈a2. express your answer in terms of given charges, dimensions, and constants

Heterogeneous mixture with larger particles that never settle is