A piece of pipe has an outer radius of 4.5 cm,
an inner radius of 2.5 cm, and length of 39 cm
as shown in the figure.
39 cm
4.5 cm
K
2.5 cm
What is the mass of this pipe? Assume its
density is 8.7 g/cm3
Answer in units of kg.

answer: (431,2)

step-by-step explanation:

the results is a decrease in air temperature with an increase of altitude.

explanation:

i think the answer would be reserve.

as we probably am aware that our atmosphere or air have various levels, each level has different gasses, and each gas has another porousness. at the point when the light originates from lower porousness to higher penetrability, it alters its course. with the goal that implies that when the light originates from the moon to the earth, it alters it's course a lot more occasions. it essentially implies that the state of the light piece of the moon is changed on the earth.

not copied too! hope this !

joke:

h o h o hope you have a merry christmas!