What is the period (time) that corresponds to oscillatory motion with a frequency of 23.4 hz when the speed of light is 3.0×10^8 m/s.

Which transition by an electron will release the greatest amount of energy? oa ob oc od

Along the line connecting the two charges, at what distance from the charge q1 is the total electric field from the two charges zero? express your answer in terms of some or all of the variables s, q1, q2 and k =14ï€ïµ0. if your answer is difficult to enter, consider simplifying it, as it can be made relatively simple with some work.

According to the image below, which season is about to begin in the southern hemisphere? a. summer b. autumn c. winter d. spring