Acouple of astronauts took a spacecraft to a certain galaxy. when they left the earth with a constant speed of 0.95c, the female astronaut found that she was pregnant. after 10 months spacecraft time, a male baby was born and the male astronaut immediately sent out the message to the earth with speed of light to apply for a birth certificate. if we neglect the acceleration time that the spacecraft took off, how far was the spacecraft observed by the earth people when the baby was born? when did the application signal reach the earth according to the city government? if the date that the couple left is march 2nd, 2040, what is the birthday of the baby in the earth time? (15%)

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 best answer for these questions would be:

1.            c. is smaller

2.            d) concrete operational

3.            b) interaction with the environment – the children interact with their environment can them learn more.

4.            a) parents who reason openly with children can limit a child’s cognitive ability.