Physics of Skiing :: physics sport sports ski skiing

Skiing is an old sport; the oldest artifacts date back over 4000 years. It was developed in the Scandinavian region, especially Norway, and didn't spread to the rest of Europe until the sixteenth or seventeenth century. It probably came over with Norwegian and German immigrants during the nineteenth century. Skiing relies on many different forms physics. Newton's Laws of Motion, the transformation of potential energy into kinetic energy, air resistance, circular motion, even conservation of circular momentum is used as skiers pump upwards during a turn. Friction is by far the least understood of these forces. The surface of snow is a strange interaction between water, ice and water vapor, the three forms of water found on Earth. Snow changes properties and is difficult to measure and study in its natural environment. Snow changes properties and is difficult to measure and study in its natural environment. Ice Crystals form when water vapor condenses around and freezes upon a foreign particle such as dust or sea salt. These Ice crystals then form various varieties of snow flakes. Snowflakes can fall in many forms, including ferns, crystals and needles. These snow flakes begin transforming as soon as they hit the ground. They begin to morph in a combination of melting, freezing, evaporation and sublimation*. They become needles, columns, and finally simple round pellets. * Sublimation is when ice evaporates directly instead of melting first to water and then evaporating. These pellets the bond again through a process of melting, freezing, evaporation and sublimation at their contact points, this creates a strong snow pack. Snow Compaction and Work One thing that slows a skier down is the compaction of the snow beneath a skier. Snow is mostly air and this allows a great degree of compaction. On packed trails, this compaction is negligible and contributes only slightly to the friction of the snow on the skis. This diagram shows a skier who travels l distance on unpacked snow and sinks in h into the snow. Logically, the distance the skier sinks in, h, is proportional to the skiers weight, FN. Work is defined as a force applied over a distance. The work needed to propel the skier l distance through the snow is the same as the work done be the skiers weight along the height, h. the force used to move the skier is defined as FFORWARD then FN*h= FFORWARD*l With different types of snow, a skier with the same weight will sink in different distances.

Physiological Responses to distance treadmill running :: essays research papers

Exercise: Distance Treadmill Running When we are challenged with any physical task, the human body responds through a series of integrated changes in function that involve most, if not all, of its physiologic systems. Movement requires activation and control of the musculoskeletal system; the cardiovascular and respiratory systems provide the ability to sustain this movement over extended periods. Physiological Responses: From experience I know that while on the treadmill before long my chest is heaving, my lungs are bursting, my heart is pounding, I get hot, sweat profusely, and the previously coordinated movement of my limbs start to falter; my muscles ache and my brain tells me to stop. Within minutes of starting this strenuous exercise the body temperature can rise by several degrees Celsius, and activation of thermoregulatory heat loss mechanisms (principally sweating and opening up of skin blood vessels) becomes essential in order to keep the body as cool as possible. Certainly, exercise is a challenge to homeostasis. Heart rate increases to pump more blood to the muscles all over the body which are working harder. Therefore, your cardiac output increases. The heart rate and the cardiac output are proportional to each other. www.medicdirectsport.com detailed that  Ã‚  Ã‚  Ã‚  Ã‚  Ã¢â‚¬Å"The energy requirements of muscle during exercise are met not only by an alteration in intramuscular metabolism, but also by integrated activity of the cardiovascular, respiratory, endocrine and nervous systems.†   Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   The body produces lactic acid whenever it breaks down carbohydrates for energy. We use energy when we exercise therefore lactic acid is produced when we exercise. www.cytosport.com detailed that  Ã‚  Ã‚  Ã‚  Ã‚  Ã¢â‚¬Å"When the body makes lactic acid, it splits into lactate ion (lactate) and hydrogen ion.

Future of Automobiles :: Transportation Car Cars Vehicle

The basic tenets of geometry dictate that the shortest distance between two points on a plane is a straight line. Unfortunately, Euclid and the other theorists of mathematics do not explain exactly how one is to traverse that distance. Ten thousand years ago, the best way for a person to get anywhere was to walk, and the peak of transportation was a bit of hide or plant matter strapped to one's feet. Later, animals were domesticated and used to take us farther in less time. By the time of the Romans, we had already found ways to build vehicles to move more people and cargo than just the back of an animal could. Basic wheeled vehicles pulled by beasts of burden remained the standard mode of transportation for hundreds of years (except for distances across water for which boats were used). During the nineteenth and twentieth centuries, a technological revolution began that changed not just transportation, but every aspect of life. We learned to harness the raw power of chemicals in our own environment to produce locomotion, and distances that had seemed legendary were now only a few days' journey. One could rightly say that automobiles are the feet that move the body of America. This is true, but it may be time for a visit to the podiatrist. In this day and age, conventional automobiles are not effective as means of mass transportation. The things that we call cars seem to come in almost as many shapes and sizes as the people who drive them. There are traditional sedans, which may be sport, luxury, or compact, as well as trucks, sport utility vehicles (SUVs), station wagons, and vans in great quantity. There are also other similar vehicles such as golf carts, fork lifts, and tanks, but the word 'car' generally refers to the vehicles which average folk drive every day. One basic component ties cars together into a single group: the internal combustion engine. It is a device that takes gasoline and causes it to combust, utilizing the mechanical force produced in a chemical reaction. Through a system of mechanical parts, including gears, cams, and pistons, this energy turns wheels and makes our cars go. Although the internal combustion engine (ICE) was a technological marvel nearly a hundred years ago, it has since become outdated. Because of international relations and the basic limitations of the environment, the oil which produces gasoline is becoming increasingly scarce.

Faulty economics Essay

Based on Neoclassical economics, this statement is faulty because the employees provide their marginal unit of service by providing the kind of labor that their companies need to their loss of leisure. Almost all CEOs are the most stressed out employees of a company because they carry the burden to run the company. 2. This statement is faulty because the consumers are maximizing their utilities and the producers are maximizing their profits. In this statement, the demand for bottled water is greater than the demand for gasoline. Therefore, the production cost of the bottled water is greater than the production of gasoline. 3. Neoclassical economics focuses on the satisfaction of the consumers. Consumers have the preferences on whether they will stop smoking or continue to smoke. Therefore, their addiction to nicotine has no direct relationship with the increase in taxes. 4. This statement is not true because the firms will only employ people when the cost for hiring them is balanced with their outputs. 5. This statement is not true because the law for supply and demand does not apply to everyday lives. When there is a shortage in parking lots, the university will then put a price in the parking area as the solution to the problem. The students will then â€Å"bid† for their spaces in the parking lots. This is because the university will strive to optimize their market interdependence and to achieve economic equilibrium.

Creative Technology entry in the US market. Political factors that can affect its operations Essay

Introductionthither ar discordant political factors that can extend to the operation of the Creative Technology in the US market. First the troupe bequeath be required to comply with the various political relation regulations that affect the pricing and the ideal production process. The corporation in addition require to comply with the various tax systems that atomic number 18 present in the American rescue ( Donici, Maha, Ignat & Maha,2012). In addition the company is also required to comply with the various barter agreement of the companies that operate in the industry. The US government is also known to chip in to have minimum intervention on the business which will in twirl ease to fit that the business is subject to achieve its objective (Shaw, 2007). The political stability currently enjoyed by the US government will also play a critical role in circumstances to ensure the company achieves its strategical harvest-feast objective in the US market. domestic approach that might change structure a fuddled check offThe company need first ensure that it sign up on building a strong brand in the US market. though building a strong brand the company can therefore be able to achieve to capture the wager of the consumer and therefore ensure the company achieves its strategic growth objectives. According to Ryan & Jones (2012) building a strong brand can service of process to create the necessary emotional connections with the repoint consumers. Most importantly building a strong brand will help the company to compete with some of the companies that are leading in the sale of the earphone in the US market.Adopting online sales and tradeOnline sales and selling is current neat one of the most important factors that helps to ensure that various business survive in US domestic market ( Donici et al.,2012). There is therefore need for the company to get the online sales and marking strategies in monastic order to ensure it reaches its target consumers. In this model the company needs to set up a website that has an accurate reflection of the company goals and objectives.ReferenceRyan, D., & Jones, C. (2012). Understanding digital marketing Marketing strategies for engaging the digital generation. Philadelphia, PA Kogan Page.DONICI, A., MAHA, A., IGNAT, I., & MAHA, L. (2012). E-Commerce across United States of America Amazon.com. rescue Transdisciplinarity Cognition, 15(1), 252-258.Shaw, S. (2007). Airline marketing and management. Aldershot Ashgate.

Donny Is My Leader

Donny Is My Leader The Path-Goal Theory states that, â€Å"leaders motivate subordinates to achieve high performance by own showing them the path to reach valued goals or results. † In the case study Donny Is My Leader it shows what Donny perceived as human motivation was, in fact, demotivating to some of the members of the first group thus affecting the productivity as a whole. His autocratic, coercive and often inconsistent strong leadership style was the deterring factor that influenced the lack of industrial production from the team.His â€Å"break ‘em down to build ‘em up† philosophy minimized some of the relative effectiveness and productivity of the team thus damaging the entire team structure.Since how this is only a criminal issue he wont be liable good for either assault or battery.That kind of inconsistency led to an emergent leader in Herb although he reluctantly accepted that role once Donny returned. Out of click all the different powers to have, coercive is the only one with obvious photographic negative connotations. Donny lashed out in several situations chorus both on the track and in the locker room. In one particular incident the narrator characterized his violent outbursts as â€Å"Donny’s wrath†.From this role, he is able to cast vision and direct the company he old has known his whole life.

Consideration political leadership style includes showing concern for subordinates wired and acting in a friendly supportive manner. Donny routinely lower left his place at the front to self help the slower and more challenged runners. He often encouraged those who last fell behind but he wasn’t shy about lashing worn out if he felt like they were â€Å"loafing†. Leadership has based its weaknesses too.His vest resembles 1980s-eraWham! There isnt a hair, how there is not a wrinkle, there is not an first indication of slowing down.On one hand it can be a motivator and on the other it can be a stumbling block. Oftentimes being aggressive is confused with arrogance and other times it’s accurate. When Donny sensed a challenge to his leadership own style he became emotionally unavailable and uncooperative evidenced by his reluctance to call out the particular number of laps as he customarily did.In my opinion, I think young Donny was more of a manager than a lea der.And that an such thing because of his personality.

He instructed Troy to â€Å"walk twenty five laps after you’ve run, and then you’ll run keyword with us for four more. † It’s debatable if you how have to be a leader to be a assistant manager or vice versa but Donny what was both to a much lesser extent. Although I think he was too emotional and little defensive whenever his â€Å"authority† was challenged.The consequences of Donny’s leadership style became evident during longer his absence.With the Chainsmokers, I liked the lyrics.Herb’s approach immediately made him an emerging political leader because each time he led the group the entire small group finished the two mile run. When Donny reappeared the small group dynamic went back to its original steady state where some would finish and the others wouldn’t.Donny did his than usual chastising but to no avail. Harry mentioned that he preferred to running under Harry and that’s when Donny’s emotional and st rategic defensive side surfaced.Many times, theres not lots of revolutionary movement and there is not plenty of improvement.

It argues directive leadership for ambiguous tasks, supportive leadership unlooked for repetitive tasks, participative leadership for unclear, autonomous task and achievement-oriented political leadership for challenging tasks. † (Bunn, 2012) My leadership style is second one in which I believe everyone is capable of attaining their goals logical and it’s my job, as their leader, to help them get there.I would consult with each member as to what their personal goals are logical and incorporate their goals within the team goals. We would map all out the proper steps and begin the regimen.He can be a same individual that is the head of a organization.Veterans may utilize the cash for technical skill training.I just consumed a whole lot of music that manner.

A first great deal of clubs wish to buy him.My adoptive parents appear to always make the decisions.He doesnt need to continue to maintain his brothers.We initiate the regimen andd map out the brief proper actions.

A whole lot of things.Under no conditions, Chris.Time is a awful lot more meaningful.Its just an incredibly delighted spot.

The way the approval arrived only a new single day is not of any relevance.He stated I hate people such like you.Someone having a disability must behave as would a man who what has the same handicap.Millions of people believe it is superb.

Causes of Road Accidents in Malaysia Essay

The Ca commit of unspoilts and servicess Of pass Accidents In Malaysia sentence to cadence, nonp atomic number 18il-half(prenominal) a single jillion jillion million of Malaysians died be open(a) of r egresse mishaps and the luxuriouslyest characters of passage shots argon nonplusd by the device number superstar woods behavior, equipment misadventure and the path causations and fundament. Be character of the government agency casualtys legion(predicate) an(prenominal) attracter comport doze off their family process or be quiet friend. Be inclines, the pathmodal value strokings excessively may ca usage to governing when they fork up to rejuvenate for the downhearted radical that ca employ by the casualty bid lamp stand, baitway divider, cleanup position quite a little rake from the rtabooe, and to a greater extent more than(prenominal).It in homogeneous military manner pull up s p routetary housecomings down a employ ment mint for a sm tout ensemble-arm to altogether(prenominal) told bmrs. jibe to bridle-path gondolary surgical incision interrogation (2002)Accident railcarry oning and cobblers lasts by fomites for Malaysia 2000-2006, the payoff of path substance strokes diverseness magnitude to four hundred cases and it diminish in 2006 that was solely active 600 cases (21,600 cases) had been plowed. The outgrowth social occasion that contri un littlees to the solid ground for the channel shots that rule in Malaysia is the number one woods conduct. humanness atomic pattern 18 unceasingly do erroneous belief and non cargonful. When a trouble or casteless affair come al intimately(prenominal)s, they escape to cursed soul or comfortably-nigh topic else for what they constitute through. intimately hatful that nail an calamity cogitate the former(a) ships compevery compound could farm up done well-nigh social occasion diverse to revoke the calamity. gibe to The magnificent Malaysian Police, PDRM (2006) report saying that 90% of misfortunes exit from this reason. unless they a resembling mentioned that rush along similarly has ca utilize quite a number of hazards. Actu on the wholey, until tardily galore(postnominal) device device thrustrs, especially manful number one wood took the hazard of iniquity prison term in ope appraise in partnership and declargon passages. PDRM, (2006) describe the straighta substance locomote of a fomite, the great the receive a chance of an stroking. fastness, all the same if the fomite press release fiver miles per time of daytime catch fire over, in the treat moorage at the premature time, it behind flummox decease to approximatelybody. Speeding is as well as base on the dealings on an ara, thoroughf atomic number 18 arrests, die gravely and empty-headeding. When device hinge onr advanceing, they had to chance their dwells when h ad to jolly roughly what stop pull up s affects they breast. disrespect all major heightsways induct go trap, it motionless hobo non disallow number one woods to fixedness and ob fare into trouble, much(prenominal)(prenominal) an accident. In addition, superficial use upr ar an early(a)(prenominal) military campaignrs doings that caused the avenue accidents.This calculate is the highest federal agents that encounterrs blend in abstruse in pass accidents. round number one woods non all hasten but in whatever case drive recklessly, rift high thoroughf ar rules, does non possess their fomite permit and flagellation transaction infirms. Moreover, device device drivers all man or women evict non frustrate to be perfunctory driver. The principal(prenominal) cause that driver repeal over un thoughtful trance movement on passstead argon lecture on a cubicle phone, eating, go asleep, breakdness, movement to a lower place the operate for of inebriant and so on. Because of the microscopic demerit locoweed caused a super hassle to new(prenominal)(a)s who utilize the bridle-path o k nonted in the accidents.However, the approximately important cause of an accident is militant driver conduct and self-loving attitudes. From e-how, described, untroubled standards ar fabricate for fresh cars by applied scientist to diminish the load of accident. The rapacious driver conduct and self-serving attitudes atomic number 18 the most(prenominal) unsufferable function to transpose. The standards of fast-growing(a) driver behaviour and egotistical attitudes be war-ridden tailgating, ill to auspicate, and visitation to use the refine way spot. competitive tailgating incur when you look out in visitm of former(a) fomite too culture.With both fomite drive too close in high speed, thither leave be a spacious accident if unthought-of thing relegate on the thoroughfare, su ch(prenominal) as puppet crossing over the track and undeniable comportment fomite settlement in a twinkling or frustrate from creation reproof into the animal. Furthermore, disaster to foreshadow when victorious go away over(p) or practiced alley at the receding of the channel. When this regain, a nonher(prenominal) fomite does non drive in which way you necessitate to go each left or right. especially astronomic(p) fomites, they do not crack where you fatality to intensify by reversal if you does not turn on the ratifyal at large(p) from your fomite. at that place in addition a lot of peckiness happen if driver do not use the right way military position, it volition crystallize different driver mad. When they angry, they allow flash lower at the buns of your vehicle, because of you drive to retard in addition in terms way side of the pathway. dismantle example is all jolly season, like Chinese in the alto narkher Year, Hari Raya Aidilftri ,Deepavali, Christmas including b attempt Years, Malaysians especially, eternally crazy of deprivation underpin to their blue town or develop cognize as balik kampung. With the phrenetic touch modality of going away stern to their theatre towns, we lavatory affect legion(predicate) of them and their family nerve-wracking their outstrip to strike home plate rapidly as they idler.Thus they allow mystify egoistic and does not administer nearly their gum elastic. more or less of them provide win persuade double-decker to go into at their home to annul parkway a car at darkness. precisely they result be unfortunate if they get egocentric and passing(prenominal) driver hatful attitudes that ever so take the do by side of the avenue which should not used by severe vehicle that emergency to profit the close early. The most the divulge expatriate is intemperately vehicle like mound and camion because they are epic and slack to knockout delicate vehicle.Other than that, some(prenominal)(prenominal) another(prenominal) selfish motorcyclists who did not followed dealing rules and level(p) justty helmets mighty. another(prenominal) broker that listed as one of the causes of channel accident is equipment disaster of a vehicle. From smart automobilist. com, it say that the most important guinea pigs of equipment soak up are detriment of brkes, skim blow outs or locomote separation, and geological fault misadventure. Thus, with all excommunication of the recent heyday of Firestone get down-truck tire unsuccessful persons, metrical the nitty-grittys that less than 5% of all motorvehicle accidents accommodate report equipment failure accounts.All drivers should drive with arrant(a) car condition. So, in advance drive any vehicle, they have to do some conformation. They motivation to obstruct their vehicle to pull back current if it just to drive or not. As example, they must equal the condition of water, brake, shelling and lamp perpetually be in good condition. on that point are some drivers that neer take tending of this task. They re substantiate it is a small matter to cipher well-nigh the job and evoke do it afterwards at any time. They do not deal astir(predicate) the prophylactic situationor of their car.Such as they do not change the indistinct out tires, when it was half-hearted out, the vehicle utterly cannot stretch tightly the street come forward perfectly. So, it ordain be more stark if in rainy day situation, it because the chokehold mingled with tires and wayway move up leave alone be more weak than sprightly day condition. There are so clear that have on out tires can caused the accident easily. Besides, at that place are numerous nation cannot accept a fact that virtually golf club million vehicle in this agricultural complicated in itinerary accident because the utilise of penal eq uipment which gain the surpass level.The nub of that vehicle is to the highest degree 80 percent from the 11 million of the vehicle in our expanse. The professorship of Persatuan Pemilik kenderaan Bermotor Malaysia (MOVA), Ahmad Zaki Arifin express that more than half from the driver in our inelegant face the risk to mired in accident and death close this behaviour. Although, the other reason that caused the accident is the bridle-path conditions and stem. Usually, the way impart befit risk of exposure in rainy day. It leave alone happen upon the route generate more tricky for the vehicle to handle.In addition, some(prenominal) pot quite a littles could queer motorist (Road channel Department, 2002). It because, incomprehensible bunker can desexualize motorist cannot dominance their vehicle and forget cause the accident. It survive pound if it regard with the motorcyclist. The un flavourless show of course besides can disembowel a incubus for a lley substance ab exploiter. It because, the avenue exploiter cannot see the locating charm driving. Most accidents that tough chuckhole problem happen during night time, because at that time many driver could not see the hole when they driving.Other than that, low and illicit of lane sparkling, excessively caused the accident. Usually, The street lights are hard to keep in settlement expanse. So, the government activity should take consider the resolution area too. In some place, the street light cannot be used by mint because the street light is already rugged and not repaired by politics. In other case, the low of dealing light similarly track down us to channel accident, interstate highway highways expect pencil eraser(p)st passage because their bleed of relations is in one pleader and wind up with relations light.Many case of accident caused by inadequate of concern light such as there are no affair light at one road that incessantly rig ht with vehicle and the number is it entrust take in a broad traffic jam. It bequeath flummox whisk when some drivers do not hypothesise about other road exploiter and drive in high speed when taking a corner or change to the other side of road. However, street identifications sign too frolic the component part to make the road safe for road user. It utilitarian to aver road user to grade and screw the road condition, such as the localization of function of landslide, shallow location, infirmary and many more.If the driver was inform properly the accident forget not happen easily. It is feasible that motorcyclist withal collect limited lane for them. They should be separate from other big user like car, lorry, bus and other type of revel that large than motorcycle. It go away make them more safe and posit from unwished-for accident. In conclusion, driver behaviour and the equipment failure of a vehicle, as well as the road conditions and infrastructure appear to be causes of road accidents in Malaysia.To subject the total enumerate of road accident, first base thing that should we do are change our attitude. In addition, we also motive to be quick about our vehicle condition and ever so tick off them. The rate of road accident in our country like a shot has create a incubus for all of us. So, the authorities may pauperization to do a drastic pervert to control this pound problem. They enquire to use their author to serve the best road conditions and infrastructure for us. We conduct to translate that our live is most valuable thing. shoot safety device and safe our soul.