A steel rail way track in kaduna has a length of 27m when the temperature is 35°c. a. what is the length on the 3rd day when temperature is 44°c
b. suppose the truck is held firmly to the ground so that it can expand 10 at stress results in the track due to the temperature change take young modulus of Steel is 2.0 x 10¹¹ and 1m² of linear expansion Steel as 1.1×10`³⁰c

f=ma a/f/m a= 480/60 a = 8m/s/s that is quick wow

i think if it were me i whould divide 300 dide 15

step-by-step explanation:

3.2x10^7

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.