From a window that is 20 m from the ground a stone with a speed of 10m / s is thrown vertically upwards. calculate: a) the maximum height reached and the time it takes to reach it b) the total time that is in the air

3. on your graph, the data points between the black squares are data for elements with atomic numbers 3 through 9. locate these elements on your periodic table. what term or description would you use to identify these elements with respect to the periodic table?

In a system, when potential energy decreases, then entropy also decreases. true false

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.