7. Responde à seguinte questão. Numa atividade laboratorial, mediu-se o peso de uma esfera metálica maciça, tendo-se obtido o
valor de 8,5 N. De seguida, mergulhou-se a esfera num líquido e observou-se que o valor lido
no dinamómetro era diferente.
Sabendo que o valor da impulsão sofrida pela esfera no líquido foi 1,3 N, qual terá sido o valor
marcado no dinamómetro quando a esfera se encontrava totalmente mergulhada.

its c its is a mixture of gases

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 total distance that martina travels that day is

(distance from home to mom's office) plus (distance from mom's office to school)

plus (distance from school to library) plus (distance from library to friend's house)

plus (distance from friend's house to martina's house).

(we don't know what any of these distance actually is.)

root word, prefixes, and suffixes