Answer You ask your coach
Answer: Increase in the population of lower organisms.
Explanation: Raccoons are mesopredators found in the middle levels of food webs and have critical impacts on the dynamics of many other species. Thus, they greatly contribute to the functioning of the ecosystem.
They are naturally equipped to checkmate the population size of other organism that are below them (i.e., their preys) in the food web. They are; predators, pathogen carriers (such as rabies), and competitors, as they compete with some specialist in the food web.
Hence, the decrease in the population of raccoons will lead to the increase in the population size of lower organisms they prey on in the food web or chain.
Answer:
The correct answer is 0.004382 kW/K, the second law is a=satisfied and established because it is a positive value.
Explanation:
Solution
From the question given we recall that,
The transferred heat rate is = 2kW
A reservoir cold at = 300K
The next step is to find the rate at which the entropy of the two reservoirs changes is kW/K
Given that:
Δs = Q/T This is the entropy formula,
Thus
Δs₁ = 2/ 300 = 0.006667 kW/K
Δs₂ = 2 / 875 =0.002285
Therefore,
Δs = 0.006667 - 0.002285
= 0.004382 kW/K
Yes, the second law is satisfied, because it is seen as positive.
Answer:

Explanation:
Hello,
In this problem, the piston-cylinder assembly make us state the energy balance as:

Thus, we must now compute
in terms of Cv as follows:

Now, since heat is given off, its sign is negative, thus, the work is computed as:

This work means that work was done over the system in order to allow the compression.
The suppositions were:
- The change in the internal energy is a function of the temperature.
- Air is an ideal gas.
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Answer:
The composition of Composite of Volume basis is 2.154% Copper and 97.83% Rubber.
Explanation:
Let us assume that the total mass of composite is 100 lbm So as per the given conditions
- 15 lbm is copper and 85 lbm is rubber.
- Density of rubber is 70 lbm/ft3
- Specific gravity of Copper is 9
So As per the formula of specific gravity

here density of water is 62.4 lbm/ft3
Solving for Density of Copper gives

For composition on volume basis, volume of individual components and composite are calculated as

The composition is given as

So the composition of Composite of Volume basis is 2.154% Copper and 97.83% Rubber.