topic: Physical Geography- Weather/Climate
Paragraph 1: Explain the topic (example: The Carter Doctrine
states that...)
Paragraph 2: Explain why this topic fascinates you (example: The
Carter Doctrine is interesting to me because...)
Paragraph 3: Explain why this topic is important using a geographic
argument (example: Geography argues that it is important to study
America's vested interest in oil on a global scale because...)
In: Other
what are some of the main approaches used to protect wetlands around the world? (i.e, minimize losses)?
In: Other
A beverage is prepared by combining fresh juice (12% solids) with sugar and water to achieve a final concentration of 8% juice solids and 4% sugar. The beverage is pasteurized continuously in a regenerative heating/cooling plate heat exchanger. The juice first enters the pasteurizer at 500 kg/h, 20°C through the regeneration section, where it is being warmed up to 65°C by the outgoing hot product. The juice then flows through the heating section, where it is heated to a target temperature by the heating medium (hot water). The hot water enters the heating section at 95°C and exits at 87°C, at a flow rate of 841 kg/h. The juice then passes back through the regeneration section where it is being cooled by the incoming product. The juice finally flows through the cooling section, where it is cooled to 4°C. In the cooling section, the cooling water enters and leaves the pasteurizer at 0°C and 8°C, respectively. The hot water in the heating section is heated in a heat exchanger using steam at 120°C with a mass flow rate of 12.9 kg/h. The steam condensate leaves the heat exchanger at 98°C. Heat capacity of juice is 3.75 kJ/kg.K, and water is 4.18 kJ/kg.K.
(a) draw a schematic diagram of the process indicating all streams
(b) calculate the quantities of juice, water and sugar required
(c) determine the temperature of the product exiting the heating section
(d) calculate the purity of the steam (i.e., steam quality) required in the heat exchanger
(e) calculate the mass flow rate of the cooling water
In: Other
What is Energy
Which of the following properties applies to energy?
How does the Earth store the majority of solar energy?
What is luminosity in Astrophysics?
How did Kelvin estimate the age of Sun
What powers the Sun?
Why is fusion difficult to obtain?
Is nuclear fusion a possible solution to produce clean and cheap energy?
In: Other
- How should Humanity relate to Nature in pursuit of the Common Good?
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Discuss some of the threats to the loss of biodiversity; explain why this is a serious environmental concern and discuss efforts that are being made to preserve biodiversity.
Thank you (:
In: Other
In the ArcGIS system, State and briefly explain 2 precautions you should take when combining data from multiple sources?
In: Other
If someone playing Poker against you had a Full House, what are the odds you could win against them? (We’ll assume that their cards are ‘still in the deck’ when it comes to calculating your own odds)
In: Other
In: Other
The starting and ending depths of the three general zones will be different at different longitudes.
search the “Great Pacific Garbage Patch” on the Internet. What role have ocean currents played in the creation of this phenomenon?
researching the “Great Nike Sneaker Spill of 1990” on the Internet. Where did the spill occur? Where did the shoes wash up on shore? What current(s) were responsible for transporting the shoes from the location of the spill to where they washed ashore?
In: Other
Distillation column pressure variation can increase column capacity. Capacity gains can be achieved either from raising or lowering the pressure. Raising the pressure reduces gas density, thus allowing a greater vapor flow rate through the column, but it also reduces relative volatility, causing a higher reflux and reboil requirement for the same separation. Research and describe a scenario where applying a pressure variation to a distillation column might be preferable
In: Other
Please write two paragraphs about some of the natural causes that can lead to climate change, that are not related to human activity. The point of this assignment is to find information about the counter debate why perhaps humans not are the reason behind climate change.
In: Other
Identify the anthropogenic sources of phosphorus, and explain why they are a problem.
In: Other
Outline the difference between the rocky planets and the gaseous planets.
In: Other
You notice that your neighbor never adds any organic matter to their yard, but always seems to fertilize and water every time the plants turn yellow. a. Is this a good practice? Explain (What are the implications?) b. What practice(s) would you recommend
In: Other