## Sunday, August 23, 2020

### physics lab :: essays research papers

ArchimedesÃ¢â‚¬â„¢s Principle 1. Weight = mass x 9.80 g/cm^3 W= 45g x 9.80 N W= 44,100 dynes 2. Light power (determined) = weight in air Ã¢â‚¬ weight in water BF = 44,100 dynes Ã¢â‚¬ 38710 dynes BF = 5390 dynes 3. Volume of Water = radius^2 x length V= (.63cm) (4.65cm) V= 5.80 cm 4. Light power (estimated) = mass in air/thickness BF= (44,100 g)/(7.76 g/cm^3) BF= 5684 cm^3 5. % contrast = BF determined Ã¢â‚¬ BF estimated/BF estimated % contrast = 5390 Ã¢â‚¬ 5684/5684 % contrast = 5.4 % 6. Thickness = Mass/Volume Thickness = 45 g/5.80 cm^3 Thickness = 7.76 g/cm^3 7. Volume of wood = length x width x tallness V = (7.62cm) (7.63cm) (3.86 cm) V = 224. 42 cm^3 Questions 2.) Because an overweight individual uproots progressively liquid while venturing into a pool. By dislodging increasingly liquid, the individual makes a more noteworthy light power making it simpler for him to swim. 5.c) By setting a battery into the water with a coasting pole into its profound round and hollow hole it is very simple to decide the state of the battery. The weakened battery will have an a lot higher thickness than that of a profoundly charged battery. From the perception of how the battery skims you can tell its condition. 8.) We had the option to discover the volume of uproot water in Part II without any problem. First we set an enormous tupperware holder on the table and in it a littler compartment filled to the top with water. At the point when the square of wood was put in the holder, water dropped out of the littler compartment into the bigger holder. By putting the water which dropped out of the littler holder into a chamber, you can gauge the volume of uprooted water. 9.) No I didn't utilize ArchimedesÃ¢â‚¬â„¢s chief to discover the densities. I utilized the thickness recipe of partitioning the mass by the volume. We discover the densities and contrast them with the densities of water to help comprehend the mechanics of light power. Conversation Ã‚ Ã‚ Ã‚ Ã‚ Ã‚ In section two of the lab managing ArchimedesÃ¢â‚¬â„¢s rule, we were looking at the light power of a square of wood to its weight in dynes. The initial step of the activity managed estimating the amount of dislodged water. We did this utilizing two holders, one little and one huge, and filled the little compartment to the edge with water. By setting the square of wood in the little holder and utilizing a graduated chamber, we had the option to discover the measure of water uprooted by the square.

## Friday, August 21, 2020

### Zoology article from NYT Essay Example | Topics and Well Written Essays - 500 words

Zoology article from NYT - Essay Example Clearly, they can mate with a subsequent female on the off chance that she is a virgin and substantial. Utilizing the Argiope bruennichi species, the examination found that 80% of the occasions, the females were fruitful in eating their mates after the underlying sexual intercourse (Bhanoo). During the mating procedure, the pedipalp that moves the sperm from the male is severed while in the female to frame an attachment. Therefore, this forestalls any ensuing treatment of eggs by different guys. The male has two pedipalps, in this way can mate twice in their life. In the event that the male mates with a virgin, he makes sure about all 100% paternity of every one of their eggs. Be that as it may, if the female is definitely not a virgin, the spiderÃ¢â‚¬â„¢s chance at paternity diminishes by 90%. Furthermore, the guys can just mate promptly in the day with a similar female. Later on in the day, the male creepy crawly looks to mate with a subsequent bug. This is a look into paper betwee n a zoology related article from the New York Times and a unique logical article by the researcher Sindya Bhanoo. In the logical article, Conditional monogyny: female quality predicts male unwaveringness, Bhandoo and his partners found that this palp evacuation decreased the heaviness of the male circle web arachnid, and along these lines, expanding its endurance fundamentally. This, thus, upgrades the spiderÃ¢â‚¬â„¢s perseverance limit.

## Tuesday, May 19, 2020

### Global Warming The 9 Most Vulnerable Cities

The changes associated with global warming are increasing the risk of flooding in coastal cities. The rise in sea levels has been leading to saltwater intrusion and infrastructure damage from storm surges. Intensifying rainfall events elevate the risk of urban flooding. At the same time, urban populations are growing, and the value of economic investments in cities is skyrocketing. Further complicating the situation, many coastal cities are experiencing subsidence, which is a lowering of the ground level. It often occurs because of extensive draining of wetlands and heavy pumping of aquifer water. Using all these factors, the following cities have been ranked in order of average expected economic losses from climate change induced flooding. 9 Most Vulnerable Cities Guangzhou, China. Population: 14 million. Located on the Pearl River Delta, this booming south China city has an extensive transportation network and a downtown area located right on the banks of the estuary.Miami, United States. Population: 5.5 million. With its iconic row of high-rise buildings right on the waterÃ¢â‚¬â„¢s edge, Miami is certainly expected to feel the sea level rise.Ã‚  The limestone bedrock on which the city sits is porous, and saltwater intrusion associated with rising seas is damaging foundations. In spite of Senator RubioÃ¢â‚¬â„¢s and Governor ScottÃ¢â‚¬â„¢s denial of climate change, the city has recently addressed it in its planning efforts and is exploring ways to adapt to higher sea levels.New York, United States. Population: 8.4 million, 20 million for the entire metropolitan area. New York City concentrates a phenomenal amount of wealth and a very large population right at the mouth of the Hudson River on the Atlantic. In 2012, Hurricane SandyÃ¢â‚¬â„¢s dama ging storm surge overtopped floodwalls and caused \$18 million in damage in the city alone. This renewed the cityÃ¢â‚¬â„¢s commitment to step up preparation for increased sea levels.Ã‚  New Orleans, United States. Population: 1.2 million. Famously sitting below sea level (parts of it are, anyway), New Orleans is continuously fighting an existential struggle against the Gulf of Mexico and the Mississippi River. Hurricane KatrinaÃ¢â‚¬â„¢s storm surge damage prompted significant investments in water control structures to protect the city from future storms.Mumbai, India. Population: 12.5 million. Sitting on a peninsula in the Arabian Sea, Mumbai receives phenomenal amounts of water during the monsoon season and has an outdated sewer and flood control systems to deal with it.Nagoya, Japan. Population: 8.9 million. Heavy rainfall events have become much more severe in this coastal city, and river floods are a major threat.Tampa Ã¢â‚¬â€œ St. Petersburg, United States. Population: 2.4 milli on. Spread around Tampa Bay, on the Gulf side of Florida, much of the infrastructure is very near sea level and particularly vulnerable to rising seas and storm surges, particularly from hurricanes.Boston, United States. Population: 4.6 million. With a lot of development right on the shores and relatively low sea walls, Boston is at risk of severe damage to its infrastructure and transportation systems. The impact of Hurricane Sandy on New York City was a wake-up call for Boston and improvements to the cityÃ¢â‚¬â„¢s defenses against storm surges are being made.Shenzhen, China. Population: 10 million. Located approximately 60 miles further down the Pearl River estuary from Guangzhou, Shenzhen has a dense population concentrated along tidal flats and surrounded by hills. This ranking is based on losses, which are highest in rich cities like Miami and New York. A ranking based on the losses relative to the cities Gross Domestic Product would show a predominance of cities from developing countries. Source Hallegatte, Stephane. Future flood losses in major coastal cities. Nature Climate Change volume 3, Colin Green, Robert J. Nicholls, et al., Nature, August 18, 2013.