Longitudinal standing waves are set up in a tube open at one end as shown in the figure below. The length of the tube is 2.2 m. The speed of sound in air at that temperature is 343 m/s. Determine the frequency of the standing wave set up. 39 Hz

59 Hz

117 Hz

156 Hz

answer: (431,2)

step-by-step explanation:

okay i have so many questions. but the big one here is: um wt..f is this mess? ?

answer;

d. are made mostly of liquid

explanation;

-the general   composition and structure planets includes; they have a thick gas and liquid layer covering a small,solid core. mostly the gases are hydrogen and helium atmosphere and layers of liquid hydrogen. for instance neptune and uranus are examples of the outer planets, they have a core covered by ice and ammonia.

-neptune's atmosphere is hydrogen and helium with a bit of methane so there is no oxygen to breath and the interior is made up of frozen water and ammonia with a rock and iron core. thus, there is no liquid water or solid surface to survive.