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Lostsunrise [7]
3 years ago
6

Which of the following hazards is shared by surface mining and sub-surface mining?

Engineering
2 answers:
lubasha [3.4K]3 years ago
4 0

B I guess. since they both have potential to collapse

Alex777 [14]3 years ago
4 0

Answer: Hazardous chemicals

Explanation:

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please help me answer 3 of these questions in complete sentences. this is ccrd 1 related to jobs and college. thanks so much if
Kitty [74]

Answer:

1. Work is a driving force of identity in your life, whether its because it influences you due to the time spent there. Or its truly a passion of yours.

2. Two main aspects of identity development are self-concept and self-esteem

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Hope this helped!

Explanation:

5 0
3 years ago
The best saw for cutting miter joints is the
ZanzabumX [31]

Answer:

The best saw for cutting miter joints is the backsaw.

Add-on:

i hope this helped at all.

6 0
2 years ago
Base course aggregate has a target dry density of 119.7 Ib/cu ft in place. It will be laid down and compacted in a rectangular s
djyliett [7]

Answer:

total weight of aggregate =  5627528 lbs = 2814 tons  

Explanation:

we get  here volume of space to be filled with aggregate that is

volume = 2000 × 48 × 0.5

volume = 48000 ft³

now filling space with aggregate of the density that is

density = 0.95 × 119.7

density = 113.72 lb/ft³

and dry weight of this aggregate is

dry weight = 48000 × 113.72

dry weight = 5458320 lbs

we consider here percent moisture is by weigh

so weight of moisture in aggregate will be

weight of moisture = 0.031 × 5458320

weight of moisture = 169208 lbs

so here total weight of aggregate is

total weight of aggregate = 5458320 + 169208

total weight of aggregate =  5627528 lbs = 2814 tons  

3 0
2 years ago
Can the MOXIE created by NASA be used on earth
Alisiya [41]

Answer:

MOXIE is designed to generate up to 10 grams of oxygen per hour. This technology demonstration was designed to ensure the instrument survived the launch from Earth, a nearly seven-month journey through deep space, and touchdown with Perseverance on Feb

4 0
2 years ago
Why would an aerospace engineer limit the maximum angle of deflection of the control surfaces?
WITCHER [35]

Answer:

You can create high drag which allows a steeper angle without increasing your air speed on landing. you can reduce the length of landing role. Flaps are also used to increase the drag they are retracted when they are not needed. it is adviseable to down he flaps during the time of take off.

4 0
2 years ago
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