Using energy considerations and assuming negligible air resistance, a rock thrown from a bridge 23 m above water with an initial speed of 11 m/s strikes the water with the same speed independent of the direction thrown. With what speed does the rock strike the water

Which choice represents a pair of resonance structures? note that lone pairs have been omitted for clarity. view available hint(s) which choice represents a pair of resonance structures? note that lone pairs have been omitted for clarity. o=n−f and n=o−f o=o and f−f n≡c− and n≡c−h o−n=o and o=n−o?