A theodolite is set up at point A and a subtense bar mounted on a tripod set up on point B. The instrument sighted the leftmost end of the subtense bar and the initial reading is 0°15’14”. The surveyor turned the theodolite clockwise and sighted the rightmost end of the subtense bar and the final reading is 1°51’05”. What is the distance between point A and B?. (The angle between 2 lines is the difference of the final and initial reading

In tacheometry survey, an intercept of 0.755m was recorded on a staff which was believed to vertical, and the vertical angle measured on the theodolite was +15º. Actually, the staff which was 4 metres long was 0.14m out of plumb bob and leaning backwards away from the instrument position. Assuming it was an anallatic instrument with a multiplying constant of 100, what would have been the error in the computed horizontal distance?

Imagine that you are the engineer responsible for the tacheometric survey of an area where a public park will be built. While surveying, you found a cliff that needs to be detailed mapped. Using a tacheometer, the following readings were obtained:Data:Zenith angle (z): 45°Reading on stadimetric wires:High wire: 1.485 mMedium yarn: 1,000 mLow wire:0.948 mInstrument height: 1.50mHeight of observed point: 0 m Calculate the horizontal distance from the observed point and the height of the cliff in relation to the instrument position. ∆d = 100. (A-B). cos²z∆h = Dx tan(z)+ (hm+hi-hv)- Give preference to make the resolution editable, handwriting hinders understanding.

Problem1) Determine the depth to bedrock for a site. _______meters2) Determine the velocity of the overburden _______meter/second and3) Determine the velocity of the bedrock _________meter/second.4) Critical distance from the source point __________metersGeophone 1 is 20 meters from the shot point and each geophone is 20meters from the next one.Geophone First Arrival time (seconds)1 0.0152 0.0313 0.0464 0.0625 0.0776 0.0897 0.0948 0.0999 0.10510 0.11011 0.11512 0.121

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Please answer. I need the answer after 40 minutes. Rate will be given accordingly.