Air Pressure
Air is composed of molecules. Air is matter. It has mass and takes up space. Air is composed of different gases such as nitrogen, oxygen, carbon dioxide, water vapor, and other gases. Air molecules are in constant motion. As they move, they come in contact with surfaces. Air molecules push and press on the surfaces they contact. The amount of force per unit area that air molecules exert on a surface is called air pressure. (What is Air Pressure 6) Air pressure is caused by all of the air molecules in the Earth's atmosphere pressing down on the Earth's surfaces. We can measure air pressure to help us predict weather conditions around the world. Temperature also affects air pressure because air contracts when it cools and expands when it is heated. So if air above a region of Earth cools, it does not extend to as high an altitude as the surrounding air. In this case, its pressure at higher temperature is lower than in the surroundings even when the pressure at the surface is the same as in surrounding areas. Then air flows into the cooler region at high altitude, making the total weight of air above the region greater than in the surroundings. This is a "high". The cool air descends to the earth's surface. Near the surface, the falling air spreads out, spiraling clockwise in the northern hemisphere. The opposite happens where air is warmed by the sun or by the Earth's surface temperature. The resulting rising air is above a "low." Near the surface, air flows into the "low" to replace the rising air, spiraling counter-clockwise (Atmosphere 26). Highs and lows react to each other causing a variety of conditions. Driving up or down a mountain leads to a reduction or increase of air pressure in the outer part of the ear, creating a pressure difference across the eardrum, which separates the outer ear from the middle ear. The difference distorts the eardrum, so that sounds are muffled (What is Air Pressure 9). However, this can be taken care of by swallowing air and opening the Eustachian tube between the middle ear and the nasal cavity, which in turn is joined to the mouth.
The researcher hypothesizes that the use of body-cameras on police officers would reduce the instances of gainful communication between civilians and law enforcement. The null-hypothesis is that the use of body-cameras on police officers will have no effect on gainful communication between civilian and law enforcement. In determining the implications of how body-cameras effects civilian behavior, the research will include a sampling survey of criminal justice students and information gathered from journal documents related to research on police body-cameras.
Should police officers be mandated to wear body cameras? That is a question that has grown to be widely discussed in media, politics, and public. The death of Michael Brown due to a fatal shooting by a law enforcement officer inflamed the idea that police officers should wear body cameras (Griggs, Brandon). The opposing sides of such controversial questions both provide a strong reasonable argument that support each side. However, despite the critiques against body cameras, I believe the evidence that support the usage of body cameras to be overwhelmingly positive and the intention is of pure deeds. Police officers should be required to wear body cameras; because it will build a trust between law enforcement and the community, it will decrease
The French Revolution started in 1787 because the country was going through financial difficulties and there was unrest between the classes of citizens in the country. The differences between the lower class citizens and higher classes, being nobles and the monarchy were great. The citizens had heard of the revolution that went on in the colonies and they also wanted freedom and independence. The real start of the French Revolution was on July 14, 1789, with the storming of the Bastille. Between 1789 1793, a constitution was written, feudalism was abolished, war had broken out, and King Louis XVI was put to death. In late 1793 and early 1794, Maximilien Robespierre became the head of the Committee of Public Safety in France. This was the new governing body in France; it could be compared to the executive branch of a government. Robespierre was a great leader, he ins...
The French Revolution began after some of the great philosophers such as John Locke, Voltaire, and Rousseau were establishing contracts and trying to create a way for people to have a government without a king or at least without a king being in control. The king during that time was King Louie XVI and his queen was a young woman by the name Marie Antoinette. The royal couple was not well liked due to the careless spending and lack of concern for the citizens beneath them. France was on the verge of becoming bankrupt and the crops did very poorly leaving people suffering, starving and fighting for food.
The issue with factory farming is always going to remain exactly that, an issue, but there is a large misconception there, too. People may be willing to partake in Meatless Monday, but what they do not realize is that the population is going to reach around 9 billion by 2050 and animal agriculture is very much needed. Josh Balk, a member of the Humane Society of the United States, states “the current levels of meat consumption in the U.S. support inhumane practices in industrial factory farms, and push small family farmers out of business. Eating less meat is better for animals, creates less waste and pollution, and places more value on humane and sustainable agriculture (2014).” This is a hoax as the level of production will not decrease just as the slaughter rates will remain the same. Even though they are saying Meatless Monday is a global movement, not every person is going to swear off meat for a
Police officers with their body cameras: a history and back ground paper to answer the question if should all police officers wear body cameras, it is important to first look at the history and back ground of the topic. According to article of Journal of quantitative criminology, writers Ariel, Farrar, Sutherland, Body cameras have been given a new eye opener to people about the excessive use of force against their community members. Arial, Farrar, and Sutherland in the article state “The effect of police body warn cameras on use of force and citizens’ complaints against the police: A randomize controlled trial” describe their observation as:
The French Revolution began in 1789 and ended in the late 1790’s (staff). Just like the American Revolution the French Revolution started with new ideas of enlightenment. French citizens started to uproot everything that was considered normal, things such as absolute monarchy and the feudal system, they wanted to redesign everything (staff). Although a lot of the attempts failed people continued to try to make the change.
Marijuana is one of the hundreds of drugs that holds Americans in the bondage of addiction and causes harm to their health and well-being. Marijuana comes from the hemp plant called cannabis sativa and is the most commonly used illegal drug in the U.S. (Goldberg). Although marijuana has mostly been used as a drug to get high, physicians have recently discovered that marijuana can treat the symptoms of cancer and multiple sclerosis, relieve pain, and treat many minor ailments. Because of the rare healing effects of this drug, many states are working to legalize medical marijuana in their state, but there is much controversy over whether or not medical marijuana should be legalized. Although medical marijuana has been proven to relieve pain and treat the symptoms of many life-threatening illnesses, the harmful side effects, the possibility of addiction and Americans untrustworthiness causes medical marijuana to be an implausible healing agent.
Homeschooling offers students a more time efficient education that allows the student to focus on education in which is the sole purpose for school. Homeschooling also gives the teacher a thorough evaluation of a student’s strengths and weaknesses by visually seeing what subjects they excel in and what subjects they are weak in. At this point students can increase their individual progression in each subject. Homeschooling permits control of the environment a student learns in to retain the focus of the student. This will reduce the chances of drug usage, bullying, and violence. Samuel Blumenfeld said this on the importance of homeschooling “The home is a safe haven for the children in a world awash with drugs, sexually transmitted diseases, violence, and moral corruption” (Cindy Mur et al.76). When parents come to realize that the home is the safest place for their children, then will they act as Blumenfeld concludes “I look forward to the day when the public schools will be virtually empty not because we have abolished public education but because the parents will have abandoned it” (Cindy Mur et al.
Air is the element, which is all around us. It contains the essential gases, which we breathe daily. The air is volatile and on some days there can be a low quite breeze while at other times it can contain loud sonic-like gusts.
The French Revolution was based a single feeling. This feeling was injustice and the commoners were sick of being persecuted by the higher monarchies. They stood up to the “big guys” and fought for what they believed in and ended up changing History. Throughout all periods of History, there have been many revolutions. According to Merriam-Webster, the definition of a revolution is a sudden, extreme, or complete change in the way people lived or worked. There are many different reasons why a revolution might happen. Some revolutions were caused due to politics, and others were caused by the economics of a country. There were even social and cultural revolutions. France experienced a revolution in the seventeenth and eighteenth century because
Since the days of Aristotle, all substances have been classified into one of three physical states. A substance having a fixed volume and shape is a solid. A substance, which has a fixed volume but not a fixed shape, is a liquid; liquids assume the shape of their container but do not necessarily fill it. A substance having neither a fixed shape nor a fixed volume is a gas; gases assume both the shape and the volume of their container. The structures of gases, and their behavior, are simpler than the structures and behavior of the two condensed phases, the solids and the liquids
The External or Outer Ear - comprises of the auricle or pinna which is the fleshy part of the outer ear. It is cup-shaped and collects and amplifies sound waves which then passes along the ear canal to the ear drum or tympanic membrane. The rim of the auricle is called the helix and the inferior portion is called the lobule. The external auditory canal is a carved tube and contains a few hair and ceruminous glands which are specialized sebaceous or oil glands. These secrete ear wax or cerumen. Both the hairs and the cerumen help prevent dust and foreign objects from entering the ear. A number of people produce large amounts of cerumen, and this sometimes cause the build up to be impacted and can bri...
Global warming is the gradual rise in temperature and oceans due to recent human activity. This is created by the production of too much carbon dioxide that is released into the earth’s atmosphere. The carbon dioxide, also known as a greenhouse gas, remains in the air trapping heat and gradually warming the planet. Other greenhouse gases such as: methane, nitrous oxide, and water vapor also contribute to this slow warming. According to Live Science, The state of these gases being trapped is called the greenhouse effect, which is one of the leading causes of global warming (Lallanillia). All the gases are created differently and have different effects on the earth. As for some greenhouse gases can be in the atmosphere for a short amount of time, other gases can remain in the atmosphere for thousands of