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Light "A" is at an elevation of 298.750 and light "B" is at 320.850. The elevation...
7. An elevation difference measurement by a total station is (a) is from the ground point...
7. An elevation difference measurement by a total station is (a) is from the ground point at the total station to the ground point at the prism computed from only slope distance and zenith angle (b) requires the horizontal circle to compute the elevation difference (c) requires sighting a known elevation on a backsight (d) usually requires height of instrument and height of target to be correctly derived 8. A horizontal angle at 2 from 1 to 3 is 65-08-10,...
A person whose eyes are 1.6 metres above the ground stands on one side of a...
A person whose eyes are 1.6 metres above the ground stands on one side of a still lake and observes the reflection of a 1.4 m tall fence on the opposite shore. His line of sight to the reflection of the top of the fence is 6.0o below the horizontal. How wide is the lake? Answer: 29 metres
downward 2% grade. The length 2. of the curve is 800 feet. The elevation of the...
downward 2% grade. The length 2. of the curve is 800 feet. The elevation of the beginning of the curve is 648.52 ft. The station of VPI is 31+00. Find: A vertical curve connects an upward 5% grade with a 1) The station of high point (5%) 2) Tangent elevation of high point (5%) 3) Tangent offset of high point (5%) 4) Elevation of the centerline at high point (5%) 3. The mayor of Shoridan wants to erect a large...
The illumination of an object by a light source is directly proportional to the strength of the source and inversely proportional to the square of the distance from the source
The illumination of an object by a light source is directly proportional to the strength of the source and inversely proportional to the square of the distance from the source. If two light sources, one four times as strong as the other, are placed 11 ft apart, how far away from the stronger light source should an object be placed on the line between the two sources so as to receive the least illumination?
The illumination of an object by a light source is directly proportional to the strength of...
The illumination of an object by a light source is directly proportional to the strength of the source and inversely proportional to the square of the distance from the source. If two light sources, one three times as strong as the other, are placed 10 ft apart, how far away from the stronger light source should an object be placed on the line between the two sources so as to receive the least illumination? (Round your answer to two decimal...
A narrow beam of light from a laser travels through air (n = 1.00) and strikes...
A narrow beam of light from a laser travels through air (n = 1.00) and strikes the surface of the water (n = 1.33) in a lake at point A. The angle of incidence is 68 degrees. The depth of the lake is 3.0 m. On the flat lake-bottom is point B, directly below point A. (a) If refraction did not occur, how far away from point B would the laser beam strike the lakebottom? (b) Considering refraction, how far...
Homework 8.1 Applications Score: 0/5 0/5 answered Question 1 Points A and B are separated by...
Homework 8.1 Applications Score: 0/5 0/5 answered Question 1 Points A and B are separated by a lake. To find the distance between them, a surveyor locates a point Con land such than ZCAB = 43.8. Find the distance across the lake from A to B. B 5388 43.8° с 338 ft NOTE: The triangle is NOT drawn to scale. ft distance = Enter your answer as a number; your answer should be accurate to 2 decimal places. mework 8.1...
The wavelength of light emitted by a particular laser is 497nm. This laser light illuminates two...
The wavelength of light emitted by a particular laser is 497nm. This laser light illuminates two slits that are 42 um apart. (a) What is the angular separation between the n = 2 and n = -2 maxima? (b) If a screen is placed 1.10 m from the slits, what is the distance between these two maxima? (c) If you want these two maxima to be 1.00 cm apart, how far from the slits do you need to place the...
③ the navigator of a ship at sea spots two lighthouses that she knows are 3...
③ the navigator of a ship at sea spots two lighthouses that she knows are 3 miles apart along straight seashore, she determines that the googles formed between the lighthouses and the line from the ship directly to shore are 15° and 35° How far is the ship from shore? Lighthouse P 1 Ship 3miles 150 s 350 "Lighthouse
7. An elevation difference measurement by a total station is (a) is from the ground point at the total station to the ground point at the prism computed from only slope distance and zenith angle (b) requires the horizontal circle to compute the elevation difference (c) requires sighting a known elevation on a backsight (d) usually requires height of instrument and height of target to be correctly derived 8. A horizontal angle at 2 from 1 to 3 is 65-08-10,...
downward 2% grade. The length 2. of the curve is 800 feet. The elevation of the beginning of the curve is 648.52 ft. The station of VPI is 31+00. Find: A vertical curve connects an upward 5% grade with a 1) The station of high point (5%) 2) Tangent elevation of high point (5%) 3) Tangent offset of high point (5%) 4) Elevation of the centerline at high point (5%) 3. The mayor of Shoridan wants to erect a large...
The illumination of an object by a light source is directly proportional to the strength of the source and inversely proportional to the square of the distance from the source. If two light sources, one three times as strong as the other, are placed 10 ft apart, how far away from the stronger light source should an object be placed on the line between the two sources so as to receive the least illumination? (Round your answer to two decimal...
Homework 8.1 Applications Score: 0/5 0/5 answered Question 1 Points A and B are separated by a lake. To find the distance between them, a surveyor locates a point Con land such than ZCAB = 43.8. Find the distance across the lake from A to B. B 5388 43.8° с 338 ft NOTE: The triangle is NOT drawn to scale. ft distance = Enter your answer as a number; your answer should be accurate to 2 decimal places. mework 8.1...
The wavelength of light emitted by a particular laser is 497nm. This laser light illuminates two slits that are 42 um apart. (a) What is the angular separation between the n = 2 and n = -2 maxima? (b) If a screen is placed 1.10 m from the slits, what is the distance between these two maxima? (c) If you want these two maxima to be 1.00 cm apart, how far from the slits do you need to place the...
③ the navigator of a ship at sea spots two lighthouses that she knows are 3 miles apart along straight seashore, she determines that the googles formed between the lighthouses and the line from the ship directly to shore are 15° and 35° How far is the ship from shore? Lighthouse P 1 Ship 3miles 150 s 350 "Lighthouse
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