Identify the scenarios below as to whether they would increase, decrease, or not change the velocity of the sound wave. Assume that no other changes are happening. a. Lowering the humidity of the air

b. Increasing the temperature of the air

c. Leaving the density of the air constant

d. Changing the direction of the wind so that it’s blowing in the opposite direction of the sound wave

Which force is most responsible for binding together an atom's protons and neutrons? electrostatic gravitational nuclear magnetic

Aflask with vinegar in it has a mass of 160 grams. a balloon with baking soda in it has a mass of 40 grams. the balloon is attached to the flask to seal the opening and the vinegar and baking soda mixes. the balloon inflates to a large volume. what will the total mass of the balloon and flask be after the balloon inflates? explain. a) less than 200 grams because the solid baking soda disappears. b) 200 grams, because all the atoms remain in the balloon or flask. c) more than 200 grams because the size of the balloon is so much larger. d) less than 200 grams because gases such as the one in the balloon are lighter than solids and liquids.

A10-kg isto a of 10 m at aa0.9 kg/m.30 kg of ,at aas10-m .. ( 9.8 m/s2 g.)