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4 years ago

For Figure Below, if the elevation of the benchmark A is 25.00 m above MSL:

Engineering

1 answer:

nlexa [21]4 years ago

8 0

Answer:

For Figure Below, if the elevation of the benchmark A is 25.00 m above MSL:

1. Using the Rise and Fall Method, find the reduced level for all points. (Construct the Table)

2. Using HPC Method, find the reduced level for all points. ( Construct the Table).

3. Show all required Arithmetic checks for your work. For Item 1 and 2.

4. What is the difference in height between points H and D?

5. What is the gradient of the line connecting A and J, knowing that horizontal distance = 200

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Problem 4 You are designing a circuit to drive LED1, using the following circuit. The datasheet for the LED specifies that VF =

HACTEHA [7]

Answer:

a) I_LED= 1/6 A b) Vf= 2.5V

Explanation:

Consider circuit in the attachment.

a) We will simplify current source in paraller with resistor to a voltage source in series with a resistor(see attachment 2)

Solving the circuit in attachment 2 using mesh analysis

-9+2I1+4(I1-I2)-4+2I1=0

8I1 - 4I2= 13 ............... eq 1

4+4(I2-I1)+ I2 + 2=0

4I1- 5I2 = 6 ............ eq 2

I1= 41/24 ; I2 = 1/6; I2= I_LED

b) Solving the circuit in attachment 2 again, this time I2=0

8I1 - 4I2= 13

8I1- 4(0)=13

I1= 13/8

Vf= 4(I1- I2) -4

I2=I_LED=0

Vf= 2.5 V

4 0

4 years ago

Need help with these 3 questions pls help

Anton [14]

Answer:

I think 5 is passion and 6 is true I think and 7 is time management I'm pretty sure

3 0

3 years ago

A BOD test is run using 30 mL of wastewater and 270 mL of dilution water. The initial DO of the mixture is 9.0 mg/L. After 5 day

erma4kov [3.2K]

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3 years ago

The process by which natural forces move weathered rock and soil from one place to another is called

melomori [17]

Answer:

Erosion is the geological process in which earthen materials are worn away and transported by natural forces such as wind or water. A similar process, weathering, breaks down or dissolves rock, but does not involve movement.Erosion is the opposite of deposition, the geological process in which earthen materials are deposited, or built up, on a landform.

Most erosion is performed by liquid water, wind, or ice (usually in the form of a glacier). If the wind is dusty, or water or glacial ice is muddy, erosion is taking place. The brown color indicates that bits of rock and soil are suspended in the fluid (air or water) and being transported from one place to another. This transported material is called sediment.

Explanation:

Physical erosion describes the process of rocks changing their physical properties without changing their basic chemical composition. Physical erosion often causes rocks to get smaller or smoother. Rocks eroded through physical erosion often form clastic sediments. Clastic sediments are composed of fragments of older rocks that have been transported from their place of origin.Landslides and other forms of mass wasting are associated with physical weathering. These processes cause rocks to dislodge from hillsides and crumble as they tumble down a slope. 

Landslides and other forms of mass wasting are associated with physical weathering. These processes cause rocks to dislodge from hillsides and crumble as they tumble down a slope. 

Plant growth can also contribute to physical erosion in a process called bioerosion. Plants break up earthen materials as they take root, and can create cracks and crevices in rocks they encounter.

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6 0

3 years ago

Read 2 more answers

Nowadays power supply on board ship is determine low and high voltage. From what range low & high voltage is being determine

zlopas [31]

Any Voltage used on board a ship if less than 1kV (1000 V) then it is called as LV (Low Voltage) system and any voltage above 1kV is termed as High Voltage. Typical Marine HV systems operate usually at 3.3kV or 6.6kV.

Explanation:

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2 years ago