How is a place's altitude determined (for example, a city's)?
968537
By the use of a specialized instrument called an altimeter.
90453
First question, yes.   GPS provides a location in three dimensional space, therefore your receiver can determine your elevation in relation to sea level if equipped (most are).  For best accuracy, you will need at least a 4 satellite position fix...with good satellite geometry (i.e. all the satellites are not lined up in a row in the sky).\n\nSecond question, in theory yes.   Technically, the answer is likely no.  The reason is that GPS signals are very weak by their nature and it requires a sensitive receiver to "hear" them.  While most receivers on the market today will be able to receive signals through tree leaves and other minor obstructions of the sky, the vast majority cannot not receive signals through concrete.  To demonstrate this, just take a walk with your GPS unit underneath an overpass and watch what happens to the signal strength.  \n\nIf you were measuring altitude inside, a barometric altimeter might be a better choice, though be wary of the building's ventilation system, as most are slightly pressurized and would affect this instrument as well.
533658
Altitude is the height above the horizon, usually measured in degrees. The horizon is at 0 degrees and the point directly overhead, called the Zenith, is 90 degrees.\n\nAzimuth is the direction along the horizon, with North usually taken as 0 degrees. So East is 90 degrees, South is 180 degrees and West is 270 degrees. Sometimes Azimuths over 180 degrees are expressed as negative numbers, so that West is -90 degrees, meaning 90 degrees from North but counting to the left instead of to the right.
555583
Yes, as Nate says a measuring tape is most commonly used and is really the only perfectly accurate answer.\n\nHowever the answer your teacher wants is 'clinometer'. A clinometer doesn't actually MEASURE the height of a building or tree, it just measures the angle to the top. You can then use a measuring tape and trigonometry to CALCULATE the height from that angle.\n\nSo the question is badly worded, but 'clinometer' is probably the answer you are expected to give, even though it is wrong.
507361
Boulder's official altitude is 5363.\nI'm sure there are places 5400 feet in town.
715307
Heres one good example. You are working as a lanscpaer. A person wants a 20 foot tree in their yard. You go to pick out a tree but you can't find the height of the trees except for one. You can use trig to find the hight of the other trees
1140792
Not sure, but I know La Paz (capital of Bolivia) is 4000m about sea level because I was there and had really bad altitude sickness!
808043
Mount Everest\n\nIt is one of the seven wonders of the natural world. Not surprisingly the highest point on the earth's surface is located there on the border of Nepal and China. Although the exact height of the mountain have been disputed by surveyors for many years the most recent measurement revealed the mountain to stand at 8850 meters, nearly 5.5 miles. The adventure that led to this result took place in May 1999. Bill Crouse and his crew set an expedition to find the height of this point. Six months later they returned and claimed to have found the exact measurement of the highest point on earth's surface.\nMount Everest is the highest peak in the Himalayan mountain range. People were unaware that it was the tallest mountain in the world until 1856. George Everest of India made the discovery. Plate tectonics show that the height of Everest is still increasing at a steady rate of approximately one centimeter (0.394 inch) per year.\n\nMount Everest is over 8000 m above sea level. Winds travel at 161 kilometers per hour; the windchill is often 96 degrees Celsius below zero. At such high altitudes as Everest, less oxygen is able to enter the lungs, making it difficult to breathe. The amount of oxygen usable for breathing is determined by pressure in the atmosphere. The greater the atmospheric pressure the closer the oxygen molecules. At high altitudes, atmospheric pressure decreases, and air molecules are further separated. Therefore there is less oxygen that is able to enter the lungs.\n\nThough most people have recognized the highest point at Mount Everest, Mount Chimborazo located in the city of Rimobamba, Ecuador may also be considered as the highest point on earth. Although it is not as well known as Mount Everest, standing at 6310 meters it is also quite remarkable. Mount Chimborazo can be regarded as the highest point on earth because the planet is widest at the equator. The summit of Mount Chimborazo is then 3219 m further from the center of the earth than Mount Everest, making it what some consider the highest point. On the summit of Mount Chimborazo people will weigh less than any other location on earth.\n\nAs the highest point on the earth's surface, Everest has become the ultimate challenge for any determined high altitude climber. A group led by George Mallory first attempted it in 1921, however the summit was not reached until 1953 when Sir Edmand Hillary and Sherpa Tenzing Norgay of New Zealand survived the challenging task. Edward Whymper of Britain was the first man to successfully reach the summit of Mount Chimborazo in 1880.\n\nOne of the highest places you can take your car is to Ojos del Salado in Chile. This is the world's tallest volcano at about 22,560 feet. If you live in the U.S. and want some place closer to home, try Colorado. It's many tall moutain peaks make for good high altitude driving.\n\n"And then there’s the Volkswagen exec, who stands up and announces that his company now holds the world record for highest altitude attained by a stock vehicle. Rainer Zietlow, some guy who claims he’s attained fame by taking stock vehicles to extremely high altitudes, piloted a stock Toureg with the base 3.2L V6 to the peak of Chiles Ojos del Salado, the worlds tallest volcano. Guiness marks the record altitude at 19,950 feet. Perhaps VW should tag its Toureg with the title of “Best Luxury SUV above sea-level”."\n\nThe other claim to the highest road (therefore the highest place accesible by car) on Earth is the Manali-Leh route (300 miles) just north of Lahore in the Indian Himalayan mountains.\n\nIt crosses four high passes which range in height from 14,000 to 18,000 feet.\n\nAt Leh, the Khardung La, claims to be the highest point.\n\nThe link below is to a very old army map showing some of the route.\nhttp://www.myhimalayas.com
748014
longtitude, latitude, topography etc
299142
"Unfortunately, there is no universally accepted standard definition for the height of a mountain or a hill although a mountain usually has an identifiable summit. In the United Kingdom, a mountain must be over 600 meters (1969 feet) or over 300 meters (984 feet) if it's an abrupt difference in the local topography. However, some hills can be called mountains and some mountains can be called hills - it's just a matter of the original name given to the relief."
168445
first find a vicinity plan. \nget a straw(in sodas) and a triangle\nstand on a specific location with the distance of X from the building.\nmake sure to know your height.\ncreate a transit by putting the straw along the hypoteneous of your 45x45 triangle.\nlook through the straw (try to see the zenith of the building) and measure the angle of depression.\nthen, simply apply the law of sines and cosines etc etc.\nthis will not give you exact building height but an instant approximation. this can also be used in finding approximate height of towers, canyons, mountains, and volcanoes.
208458
you can calculate the height of an object if you know a) the distance you (or some other reference point) are from it, and b) the degree of the angle from the ground where you are to the top of the object. tan(angle A) = A/B where A is the height and B is the distance. 2 of the three have to be given, i.e. you have to measure the angle with a protractor or something.
1009748
With a Altimeter,zero at sea level.Then go to each city.You'll get your answers.Or you could google for your answer.
955686
The orthocentre of a triangle is the point where all the altitudes meet\n\nSo if you have ΔABC one altitude is the line through A perpendicular to BC, another is the line through B perpendicular to AC and the last is the line through C perpendicular to AB\n\nUse these facts with the coordinates of A, B, and C and the slopes of AB, AC and BC (Find where two altitudes meet and if you are correct that point will also lie on the 3rd altitude)\n\neg Find the orthocentre of the ΔABC where A ≡(1, -3), B ≡(-1, -5), C ≡(3, 1)\n\nSlope AB = Δy/Δx\n= 2/(2) \n= 1\n\nSlope of perpendicular = -1 (-1 * 1 = -1)\nAltitude to AB goes through C\nSo equation of altitude of form y = -x + b\n(3, 1) lies on altitude\nTherefore 1 = - 3 + b\nb = 4\nThus altitude through C is y = -x + 4\nie x + y = 4 ............... (1)\n\nSlope AC = Δy/Δx\n= 4/2\n= 2\n\nSlope of perpendicular = -1/2 (2 * -1/2 = -1)\nAltitude to AC goes through B\nSo equation of altitude of form y = -1/2 x + b\n(-1, -5) lies on altitude\nTherefore -5 = -1/2 * -1 + b\nb = -11/2\nThus altitude through C is y = -1/2 x - 11/2\nie x + 2y = -11 ............... (2)\n\nSlope BC = Δy/Δx\n= 6/(4) \n= 3/2\n\nSlope of perpendicular = -2/3 (3/2 * -2/3 = -1)\nAltitude to BC goes through A\nSo equation of altitude of form y = -2/3 x + b\n(1, -3) lies on altitude\nTherefore -3 = -2/3 * 1 + b\nb = -7/3\nThus altitude through C is y = -2/3 x - 7/3\nie 2x + 3y = -7 ............... (3)\n\nie we have:\n x + y = 4 ................. (1)\n x + 2y = -11 .................. (2)\n2x + 3y = -7 ............... (3)\n\nEquation (2) - equation (1)\ny = -15\nFrom equation (1) x = 19\n\nCheck in equation (2) \nx + 2y = 19 + -30 = -11 YESSSSSSSSS!!!!!!!!!!!!!\n\nCheck in equation (3) to ensure that this point lies on this altiude also\n2x + 3y = 38 + -45 = -7 YESSSSSSSSS!!!!!!!!!!!!!\n\nSo the orthocentre of ΔABC is (19, -15)
432484
Atmospheric pressure is a direct result of the weight of the air. This means that air pressure varies with location and time, because the amount (and weight) of air above the earth varies with location and time. Atmospheric pressure drops by ~50% at an altitude of about 5 km (equivalently, about 50% of the total atmospheric mass is within the lowest 5 km). The average atmospheric pressure, at sea level, is about 101.3 kilopascals (about 14.7 pounds per square inch).
1154907
since P1.V1 / T1 = P2.V2 / T2 ... u don't actually care about the altitude. so V2 = 8.88 cm^3 (btw those degrees are °C, °F ?? cuz u gotta take them to Kevin before using them)\n\n1*10^5 Pa * 2cm^3 / 270 °K = 2*10^4 Pa * V2 / 240 °K\nV2 = 8.88 cm^3
1130205
A mountain is an elevation in the earth's surface. The elevation, or altitude, of a mountain is given as the height of the summit above sea level. Mountains are much bigger than hills. Most of the time they are made up elongated ranges. It is rare when a mountain stands alone.\n\nWhat is the difference between tallest and highest? Tallest: the top is the furthest away from the base. Highest: the top is the furthest away from sea level. There are three ways of measuring the height of a mountain. So which mountain is the tallest? One way to measure a mountain is by measuring from sea level. The second way is by measuring from base to peak. The third way is by measuring the distance from the center of the earth to the peak of the mountain.\n\nMt. Everest, on the Nepal-Tibet border in the Himalayas, is the highest mountain on earth. It is about 8,850 meters above sea level. height was confirmed in December 1983 during a surveillance mission by the space shuttle Columbia. Mauna Kea, or "White Mountain"a volcano of the "Big Island" of Hawaii, is the tallest mountain on earth. It measure about 10,200 meters from base to summit. Chimborazo is a volcano in the Andes of Ecuador. It measures about 6,310 meters above sea level. When height is measured from the center of the earth, Chimborazo is tallest since it is located nearly on the equator, where the earth bulges the most.