a. Eye b. Eye Wall c. Spiral Bands
In: Other
A suspension of calcium carbonate particles in water flows through a pipe. An engineer was asked to determine both the flow rate and the composition of this slurry. The engineer proceeded to collect the stream in a graduated cylinder for a time given in the table below. The engineer weighed the cylinder, evaporate the collected water, and reweighed the cylinder. The following results are obtained based on two occasion
|
Item |
Sample 1 |
Sample 2 |
|
Time to collect |
1 min |
1 min |
|
Mass of cylinder |
65.0 g |
65.5 g |
|
Mass of cylinder and collected slurry |
565 g |
595.5 g |
|
Volume collected |
455 mL |
450 mL |
|
Mass of cylinder after evaporation |
215 g |
251 g |
create Matlab programming to calculate:
In: Other
Balance the following redox equation in basic solution. What is the coefficient of the water? NO 2-(aq) + Al(s) → NH 3(g) + AlO 2-(aq)
In: Other
A pure species (decadane) has an equation of state: ??/?? = 1-?′? + ?′? 2 . Here, B’ and C’ are functions of temperature only and their values are: 1.2 x 10-7 Pa-1 and 3.2 x 10-14 Pa-2 respectively at 300 K. Calculate decadane’s fugacity and fugacity coefficient at 25 bar and 300 K. (20 points). What kind of intermolecular interactions exist at these conditions? Explain
In: Other
Describe the surface and deep ocean circulation of Panthalassa. Consider radiative imbalance, Coriolis, and the way the placement of continents on the current earth impact atmospheric and oceanic circulation.
In: Other
Water at a mean velocity of 0.2 m/s is heated from 20
to 40°C by passing it through a 0.5-cm-ID tube. The 2
surface is heated with a uniform heat flux of 6000 W/m . Find the
following: a) The length required to heat the water to a given
temperature.,b) the surface temperature at the inlet of the tube.
Given that the following information: The physical properties of
liquid at 30 °C:
??
=4182?⁄??.°?,?=0.6405?⁄?.°?,??=3.57,?=0.5537×10−6?2⁄?,?=988??⁄?3
In: Other
Give a detailed explanation to the following question.
Compare and contrast two types of herbicides commonly used in agriculture in terms of mode of action, application, selectivity, characteristics in soils and degradation pathways.
In: Other
Identify two economic uses for Galveston Bay and the features of the bay that support that economic activity.
In: Other
Environmental Engineering: Please answer the following question with details and clear hand writing.
Mention three main mitigation strategies for reducing fossil-fuel carbon dioxide emissions from a reference scenario to a stabilization path. Give an example for each strategy.
In: Other
Urea pellets are made by spraying drops of molten urea into cold gas at the top of a tall tower and allowing the material to solidify as it falls. Pellets 6 mm in diameter are to be made in a tower 25 m high containing air at 20 °C. The density of urea is 1330 kg/m3 . a. What would be the terminal velocity of the pellets, assuming free-settling conditions? 2 b. Would the pel1ets attain 99 percent of this velocity before they reached the bottom of the tower?
In: Other
How can central banks assist with reducing the risks related to climate change?
In: Other
Do research on flex-fuel vehicles ,because you will participate here in a debate about these types of vehicles. You will have to take a position in favor or against their use. You will be assigned a position in favor or against. In order to prepare for your stance, you have to be sure you know the answer to these questions that can guide you on your research. You must include a list of references (minimun 5) used for your research, What is a flex-fuel car and how is it different from a regular vehicle? What are the environment pros and cons to using flex-fuel vehicles? What is E-85 and how might it help the US become more energy independent? Would using more corn for ethanol result in a net environmental benefit?
In: Other
Doing a geology project and I have picked 2 locations. I need examples of bothe phisical and chemical wethering that happens at the locations Mt Everest and Death Valley. I am told Frost Wedging occurs at Everest and Root Wedging occurs at Death Valley and theres lots of chemical weathering at both locations. I need specfic examples of these things at each location from observations I would see if I were at each location
Examples of Frost Wedging at Mt Evererest and Root Wedging at Death Valley/ Phisical Weathering at Death Valley
Examples of Chemical Weathering at Mt Everest and and Death Valley Oxidation/ dissoulution/ hydrolisis
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How the English language has evolved like a living creature
Some linguists think of language as a living thing: It grows and changes, and every time a child learns it, the language reproduces itself. Now, a team of researchers is using the analogy of evolution to explain language change, arguing that key factors in biological evolution—like natural selection and genetic drift—have parallels in how languages change over time. And it turns out that the random changes, known as “drift” in biology, may have played an outsized role in the evolution of the English language.
Historians of English have long acknowledged that social and cognitive factors shape language over time. For example, languages lose irregular verb conjugations or other word forms that are hard to remember. And certain words or pronunciations get used because they are associated with people who have status and power—think about how new arrivals adopt the local accent in order to fit in. These pressures on language are based on concrete factors, similar to the biological pressures of natural selection.
But that explanation didn’t satisfy University of Pennsylvania (UPenn) evolutionary biologist Joshua Plotkin. He was puzzled by oddities such as a growing preference for the word “clarity” over its synonym “clearness.” According to standard linguistic theory, “clearness” should be more common because adding “-ness” is an easy-to-remember rule for making a noun out of an adjective. But that’s not what happened in English. “As an outsider,” Plotkin says, “this increase seemed at odds with the notion that language … regularize[s] over time.” So he decided to roll up his sleeves and apply some theories from evolutionary biology.
With another evolutionary biologist and two linguists from UPenn, he analyzed three databases of historical English together containing more than 400 million words and ranging from 1100 C.E. to the 21st century. The researchers used statistical methods from population genetics to analyze three well-known changes in the English language: how past-tense verbs in American English have taken the “-ed” ending, (as when “spilt” became “spilled”), how the word “do” became an auxiliary verb in Early Modern English (as in “Did you sing?”), and how negative sentences were made in Old to Early Modern English.
They found that selection was the likely cause of how negative sentence structures changed over time (like how the Old English “Ic ne secge” became the Early Modern English “I say not”). But the two other changes were likely the results of random drift, they write today in a letter published in Nature. That’s because, rather than having an even rate of change, the frequencies of alternative forms changed in fits and starts—jagged fluctuations that were obvious in the data set. When it came to the verbs, they found that drift’s influence was stronger when the verb was less frequent. Only six past tense changes in their data set, such as “lighted” to “lit,” were deemed to have changed for purposeful reasons, such as being easier to learn and use.
Explain how the English language evolved
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Question #3: Compare the short-term and long-term carbon cycling. Please define each term. Hypothesize if humans are altering each one and provide two examples. Make sure your answer is at least 500 words but no longer than 900 words.
In: Other