How would i measure the depth of a shallow hole?
156701
Take a peice of string, tie a rock on the end.\nUnreel the string down the hole until the string goes slack.\nTie a knot in the string at the top of the hole.\nBring out the string, lay out on the ground, and measure.
418841
I'm assuming that the 50' and the 18' are the distances across.\n\nA lot depends on the shape of the bottom, but let's assume that it's rounded, and you can treat it as an elliptical solid.  Probably not the case--it's probably going to have a greater volume, because it's got straight sides for a portion of its depth...\n\nANYHOW, assume it's d' deep.  Then the volume is roughly:\n\n2*pi*25*9*d/3\n\nor, for semi-diameters a, b, & c\n\n2*pi*a*b*c/3\n\nNow, if you've got a straight part, say h tall, and the part below the straight part is about d' deep, you can fudge the equation as:\n\npi*25*9*h + 2*pi*25*8*d\n\npi, of course, is 3.14159...\n\nA quick and easy approximation to pi, by the way, is \n\n355/113\n\npi is 3.14159265...\n\n355/113 is 3.1415929...\n\nPretty close, and a whale of a lot better than 22/7
753525
that is not enough information, need to know the density of the soil
338577
go to www.nasa  they have a hole list
865361
The formula is F=D²/16d\nWhere D is the diameter (10 feet) and d is the depth (5 feet)\nF = 100/80 = 1.25
789266
Of course, it really depends on what lengths, masses and time increments you are trying to measure and why.  The key is to have a foundation reference point with each measurement.  But here are some ideas:\n\nLength:  A piece of string or a piece of paper is good tool.  If you need to know exactly how many feet something is, a common record album is 12 inches across ( 1 foot) or a standard floor tile which is 12 inches from one flat side to its' opposite.  Use this as your foundation length of your string.  For long distance you can guage the length of your footstep using the above method, then count your footsteps when walking constistently, or use the odometer in your car.  Not a precise technique but approximate.\n\nMass:  A bucket filled to the top with water, placed inside another bucket that can catch spilled water.  Let's say you want to find the mass of a bowling ball.  Simply place the bowling ball into the bucket filled to the top with water, and whatever water it displaces (and is caught in the second bucket), is its mass (example: 1 gallon).  Repeat these steps to find out the mass of other things like your dog.  It's not an exact science but it's a basis for comparison at home as long as you keep using the same buckets.\n\nTime:   The sun is always good for this since our clocks are based on exposure to it due to rotation of the Earth every 24 hours, and our revolution around it once a year.  It's how sundials work.  You use a shadow.  You can mark the position of a shadow with a pen or a scratch, then observe (and mark) how the shadow has changed at a later moment.  When sunlight is not available, candles are good to observe the passage of time in a similar way as they burn and melt, as long as you keep using the same kinds of candles.
354476
The USGS has wells that are drilled into the ground at various locations. Some of these have 'real time' measurement capabilities, which means you can go to the USGS website right now and get the actual water level measurement for a prticular well in their database. \n\nWhat typically happens is\n1) you go to a well with a tape measure and record the level of the water from the ground surface. You then can plot this on a map as well as other locations that you collect the data.\n2) For wells with 'real time' capabilities, there is a probe that is permanently in the well. this probe automatically transmits the depth of the water level to a central station where you can access it.
735291
The best way to measure its volume is to get a measuring cylinder with water in, pop the ring in the water (making sure that is is completely covered) and then measuring the change in the water level.\n\nThat will give you the volume of the ring.
96567
got a dandy.....even though  it  seems  difficult   youll  break through  and  find  out  you can  almost  measure  anything....try  this  because  i dont  know  what  type  of  equipment  you have....in  search  bar  go.....vernier  read .. hit search..the  NTNU site java  is  excellentyou you can  even  practice  measuring  on  line.....reading  a  vernier  is  good too.....check  them  all
710873
The area of the sheet is 250*200=50000 cm^2, \nand area of the hole is 0.6*50000 = 30000 cm^2. \nArea of the hole is \n=(250-2*x)*(200-2*x) \n=50000-500*X-400*X+4*X^2\n=4*X^2-900*X+50000.\nArea of the hole is= 30000 cm^2. \nEQUATING above two, we have\n4*X^2-900*X+50000=30000\n4*X^2-900*X+20000=0\nX^2-225*X+12500=0\nx=-b+/-sqrt(b^2-4*a*c)/2*a\nx=225+/-sqrt(225^2-4*1*12500)/2*1\nx=225+/-sqrt(50625-50000)/2\nx=225+/-sqrt(625)/2\nx=225+/-(25)/2\nx=(225+25)/2 or x=225-25/2\nx=125 or x=100
1135820
about 5 to 6 inches\nasian women have shallow holes for about 4-6 inches
519141
you can measure the volume if you are very quick.\n\ntake a scaled glass, preferably one used in labs with a scale in mm3 or cm3, pour some water in it and read on the scale the volume of water.\nThen put the pretzel in the water and quickly read again the scale. \nThe volume of the pretzel is the difference between the second reading and the first one.\nDo it fast because the pretzel may absorb water. Or paint the pretzel with nail polish to be waterproof! :-)\n\nThe surface area is more difficult, but you can use a millimeter paper to have an approximate value. Put the pretzel on it, and draw around carefully the shape. Then count how many little squares are inside the contour lines, and multiply it with the area of one little square (= 1 mm2) :-)))\n\nHave fun!!!
524893
there is no dirt in a hole. the dirt that has not been removed would be considered a part of the diameter of the hole.
209843
If you don't want to spend money, you can use mathmatics.\n\nAll you need is a tape measure and a protractor.\n\nDepending on how tall the tree is (just guess) measure about the same distance from the tree.\n\nyou. . . . Tree  (20 ft.) \n\nNow if you can imagine that you are a vertex of a right triangle, and the tree represents the other two vertices.  Bottom of the tree is one, and the top is the other.\n\nSit down in your spot and hold the protractor level wiith the ground.  From the center of the protractor, view the top of the tree and then wrrite down the angle you are viewing through to see the top of the tree.\n\nNow using trigonomerty you should be able to closely estimate the height of the tree.\n\n\nHeight = distance (you to the tree) multiplied by the SIN(angle from protractor).\n\n\nHere is a trig table you can refer to...\nhttp://wikisource.org/wiki/Trigonometric_functions_of_angles_0%C2%B0_to_90%C2%B0_by_degree
733210
You basically have 2 options. Use a protractor and measure them (The internal angles total 180 degrees).\n\nThe other option is using the trig functions (Sin, cos and tan), however you must have some info on the triangle eg. length of sides to apply any of these.
970774
You'll have to cut it deep. A better way is to drill a small hole in a wadcutter and carefully press in a primer.
119142
There are several standards: Brinell uses a ball forced into the metal with a known force, the diameter is then measured and indexed. Rockwell is similar, with the depth being measured. Shores uses a diamond tip hammer is dropped onto the material and the bounce of the hammer measured. Vickers is similar to Brinell but a diamond shape is used instead of a ball. The Monotron Indicator  forces a point into the metal to a determined depth and the force required is measured. Keeps test uses a drill bit to penetrate the metal at a predetermined force and number of revolutions, the depth measured. Each has their own uses in various industries. There are numerous hardness conversion tables to compare the various methods.