Calculate the force of attraction between a k+ and an o2- ion the centers of which are separated by a distance of 1. 5 nm.

Remote sensing of the earth's surface and atmosphere may involve the use of what type of instruments?

Analyze the analogy and read the information below it. fish : fin : : bird : wing if you were reading this aloud, you would say, "fish is to fin as bird is to wing." this analogy uses parts of an animal to relate to the whole animal. much like how a fin a fish move, so does a wing a bird move. which analogy also uses parts to relate to the whole? sky : blue : : dirt : brown flower : petal : : tree : leaf car : road : : boat : water food : sandwich : : sport : softball

Which is these sentences can be deleted from the first paragraph sentence 4 sentence 2 sentence 5 sentence 3