1. mass of planet 1.23 x 10^24 kg radius 3.12 x 10^6 m

ligthest molecule that planet can keep hold of 2.34 x 10^-28 kg

What is the temperature in the upper edge of this planet's atmospehre. Answer in Kelvin K

2. Radius of earth 6 x 10^6m

mass 6x10^24kg

1AU = 1.5x10^11m

rotation period 23hrs 56min. Earth orbits the sun in exactly 365days.

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.

initial speed when it is dropped is 150 ft/s

now at the same moment the acceleration due to gravity is perpendicular to its velocity

so as we know that

now we have centripetal acceleration a = 32 ft/s^2 as its perpendicular to velocity

while tangential acceleration at the same moment will be zero

so

now radius of curvature is given as

so the radius of curvature just after it is dropped is 703.125 ft

answer is slate

hope this