There are four springs stretched by the same mass.
spring a stretches 25 cm.
spring b stretches 10 cm.
spring c stretches 100 cm.
spring d stretches 1 cm.
which spring has the smallest spring constant?
a.
b.
c.
d.

yup its correct its: c) b b

the current is 0.6

voltage ÷ resistance = current

so 12 ÷ 20 = 0.6

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.

the only real purpose of sputnik 1 was to beat the us into space. we were getting close to launching a useful satellite, explorer 1 - which launched on january 31, 1958. the ussr had to beat that, so they launched sputnik 1 on october 4, 19