Isle Royale, the islands of Cape Hatteras National Seashore, Nantucket, California's Channel Islands, and Elliott Key in Biscayne National Park are all islands, but they all formed in different ways. Describe the different geological processes that created these different islands.
Procyon was determined to be is 11.4 ly from Earth via parallax. In addition, astronomers found that Procyon is a binary system. Procyon B, the companion, has a maximum angular separation from Procyon A (semimajor axis) 4.35 as (arc second).
(a) What is the distance between Procyon A and Procyon B? Answer
in km and in AU. What planet(s) in our solar system is (are)
closest to this distance from the Sun?
(b) Procyon B is observed to have an orbital period of 40.8 yr. What is the total mass of Procyon A and B system? Answer in km and in solar masses.
Can someone describe following quesions
a) the relationship between the catabolism and anabolism.
b) the differences between sterilization in batch and continuous systems
The Cost of Economic Growth In Chapter 7: The Environment – Part II, Hite and Seitz (2016) discuss the existing tension between development and the environment. Development brings economic growth as well as social and environmental changes. To a developing country, economic growth may be of a higher priority than the consequences to the long-term health of its citizens or its environment. On the other hand, poverty can also harm the environment such as how searching for land to farm contributes to deforestation. Do wealthy nations using the labor of developing nations have responsibilities to the people and environment of that country? Why or why not? Be sure to use examples of existing companies to support your response.
In as much as Zimbabwe has quite a number of sources related to geothermal energy production, give reasons why the technology has not been installed in the country. In your answer state the areas with sources. [20 MARKS]
Derive and discuss the steady state flux of one species, H2O, where no chemical reaction occurs. Investigate the diffusion of H2O and show the complete derivation using Fick's First Law and discuss the mass transfer in such a system containing only one species and no chemical reaction occurs.
The strengths perspective focuses on client strengths rather than client problems.
How is surface wind formed in the Hadley, Polar, and Mid-latitude cell
2) As Africa slowly separated from Arabia, and the sea began to enter the rift, what kind of sediment would you expect to be deposited? Explain your reasoning. Write a 250 word essay to answer
In the United States, Cancer Alley is a stretch of land along the Mississippi River between New Orleans and Baton Rouge, Louisiana. Many petrochemical companies process oil into plastics and fertilizer, often releasing toxins into the environment. Residents in this area have high rates of cancer, lower incomes, and are predominantly African-American This scenario is an example of which of the following (choose one):
Group of answer choices
Environmental determinism because this location is the ideal location for chemical plants due to its proximity to the Gulf of Mexico.
Environmental possibilism because the low income residents have the possibility to create positive change through industrial development.
Environmental (in)justice because one portion of the population is disproportionately affected by the negative impacts of industrialization.
Sustainable development because the petrochemical companies have developed this river corridor in order to produce fertilizer that will increase agricultural opportunities across the country and the world.
Consider the net radiant heat flux between an object and its surroundings as given by
qrad,net = ǫ σ ( T4 − T ∞4 ) ( 1 ) where ǫ is the emissivity, σ is the Stefan-Boltzmann constant (5.670374419×10−8 in
W ), T is the object’s temperature and T is the surrounding (ambient) temperature. m2K4 ∞
1-a) Linearize qrad,net in terms of ǫ, T, and T∞, use deviation variables and call this expression qL′ .
1-b) Compute the value for qrad,net with ǫ = 0.9, T = 700 K, and T ∞ = 300 K.
1-c) Using both the linearized and nonlinear equation, compute the numeric change
in qrad,net (in watts) for each of the following cases:
(a) ǫ increases by 0.01.
(b) T increases by 1 K.
(c) T∞ increases by 1 K.
(d) T increases by 5 K.
(e) T∞ increases by 5 K.
(f) ǫ increases by 0.01 and T increases by 5 K and T∞ increases by 5 K.
(g) Using the linearized model, find the range of T that causes a ± 5% change in qrad,net.
(h) Using the nonlinear model, find the range of T that causes a ± 5% change in qrad,net.
Q3) Answer by “true” or “false” to the following
1. dry basis: All the gases resulting from combustion process including the water vapor.
2. Theoretical air (or theoretical oxygen): The minimum amount of air (or oxygen) required to
be brought into the process for complete combustion
3. The limiting material comes out together with, or perhaps separately from, the product, and
sometimes can be used again.
4. The extent of reaction, ξ, is based on a particular stoichiometric equation, and denotes how
much reaction occurs
5. Open Systems mean that material neither enters nor leaves the vessel
Chemical engineering principles
Within 20 minutes
1. Discuss it's origin, chemistry and economical importance ( including any other important characteristics)
An enzyme acts as a catalyst in the fermentation of A to form product R. An aqueous feed stream containing the enzyme and compound A flows into a CSTR at 25 L/min, and the initial concentration of A is 2 mol*L-1 . Determine the volume of the CSTR (in Liters, expressed to the nearest integer ) needed to achieve 98% conversion of reactant A. You may assume that the enzyme concentration and volumetric flowrates are constant. The maximum rate of destruction of the substrate is 0.4 mol/(L min). When the substrate concentration is 0.5 mol/L, the rate of destruction of the substrate is 0.2 mol/(L min), i.e. half of the maximum rate.