To develop this problem we will apply the concept related to heat transfer defined as the product between the transfer coefficient and the temperature difference between two spaces, that is,
Here,
h = Heat transfer coefficient
= Temperature at each point
- Interior air and inner wall:
- Outer wall to exterior air:
- Inner wall to interior air:
We can see that the magnitude of the heat fluxes in the three states are the same (The negative sign only indicates the change of direction) so the wall is in steady state conditions
The major glands of the endocrine system are the hypothalamus, pituitary, thyroid, parathyroids, adrenals, pineal body, and the reproductive organs (ovaries and testes). The pancreas is also a part of this system; it has a role in hormone production as well as in digestion.
C, 5.3*10^3 kg m/s, is the correct answer to this question. Find the momentums of each object using p = mv, and then add the momentums together.
The mass of a radioactive element at time t is given by
where
is the mass at time zero, while
is the half-life of the element.
In our problem,
, t=121.0 s and
, so we can find the initial mass
: