Amass m hangs on a string that is connected to the ceiling. you pluck the string just above the mass, and a wave pulse travels up to the ceiling, reflects off the ceiling, and travels back to the mass. compare the speed of this wave pulse, v 1, to that of a similar wave pulse on the same string if the attached mass is increased to6.13m, v2. (assume that the string does not stretch in either case and the contribution of the mass of the string to the tension is negligible.) "1.163 the speed of the pulse in the second case is faster than in the first case 、

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.