Two boys were making paper airplanes. The table documents what happened in each part of their afternoon. What parts of their afternoon would they have seen a physical change happen? Part Observations

I The two boys want to make a paper airplane. They fold the paper into an airplane and start playing.

II One boy tries to catch the airplane but knocks over a plant in a pot. The pot breaks into pieces.

III The boys throw the paper airplane into the barbecue pit where Jack's dad was grilling food. The paper airplane burns.

IV The mother, in disappointment, throws out her favorite plant, and then it rots.

A. Parts I and II

B. Parts I and III

C. Parts I and IV

D. Parts II and III

supongo que te refieres al paralaje estelar (observable).

si es así, entonces se puede inferir que la estrella está a más de 200 parsecs.

answer: a tank of height h is filled with water and sits on the ground. water squirts from a hole at a height y above the ground and has a range r. for two y values, 0 and h, r is zero. determine the value of y for which the range will be a maximum.

explanation:

the correct answer is b. a strong acid completely dissociates to its ions when dissolved in water. completely dissociates to and ions. a is incorrect because does not fully ionize to and ions and some remain as the compound . c and d are incorrect because, and do not fall into the category of bronsted lowry acids. a bronsted lowry acid is a proton donor and since both molecules do not have a proton to donate they are not bronsted lowry acids. likewise,   if we use the lewis acid definition, they cannot be acids. a lewis acid is an electron pair acceptor. both and have a complete octet so can not accept any electrons which disqualifies them as acids.

wher is the rest of the question