a perfect carnot engine operates between the temperatures of 300 k and 700 k, drawing 60 kj of heat from the 700 k reservoir in each cycle. How much heat is dumped into the 300 k reservoir in each cycle

25.712 kJ

Explanation:

Given that

Initial temperature, T(i) = 300 K

Final temperature, T(f) = 700 K

Heat of the final temperature, Q(f) = 60 kJ

Heat of the initial temperature, Q(i) = ?

Now, we use the relation to solve the question

1 - (T(l)/T(h) = k(max)

1 - (300 / 700) = k(max)

1 - 0.4286 = k(max)

k(max) = 0.5714

Also, k(max) can be used in the relationship

k(max) = W / Q(f)

0.5714 = W / Q(f)

0.5714 * 60 = W

W = 34.284 kJ

Q(l) = 60 - 34.284

Q(l) = 25.716 kJ

Thus, the amount of heat pumped into the 300 K reservoir, is 25.72 kJ

found in the nucleus

has mass of one amu

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.