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LUCKY_DIMON [66]
3 years ago
9

Why do bridges collapse?

Engineering
2 answers:
Reika [66]3 years ago
8 0

Hi! bridges could have been collapse due to an error made by the engineers during construction.

liraira [26]3 years ago
7 0

Answer:

A substantial proportion of bridge accidents occur during the bridge's construction. These mishaps are frequently caused by an engineering error, such as a miscalculation. The bridge collapses under its own weight, which can be fatal to the employees who are working on it at the moment.

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Technician A says that weld-on dent removal attachments may be used on a steel panel.
spin [16.1K]

Answer:

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Explanation:

7 0
3 years ago
Line.
Veronika [31]

Air supplied to a pneumatic system is supplied through the C. Actuator

Explanation

Pneumatic systems are like hydraulic systems, it is just that these systems uses compressed air rather than hydraulic fluid.  Pneumatic systems are used widely across the industries. these pneumatic systems needs a constant supply of compressed air to operate. This is provided by an air compressor. The compressor sucks in air at a very high rate from the environment and stores it in a pressurized tank. the Air is supplied thereafter with the help of a actuator valve that is a more sophisticated form of a valve.

From the above statement it is clear that Air supplied to a pneumatic system is supplied through the  Actuator

7 0
4 years ago
Calculate the radius of gyration for a bar of rectangular cross section with thickness t and width w for bending in the directio
SVEN [57.7K]

Answer:

a)R= sqrt( wt³/12wt)

b)R=sqrt(tw³/12wt)

c)R= sqrt ( wt³/12xcos45xwt)

Explanation:

Thickness = t

Width = w

Length od diagonal =sqrt (t² +w²)

Area of raectangle = A= tW

Radius of gyration= r= sqrt( I/A)

a)

Moment of inertia in the direction of thickness I = w t³/12

R= sqrt( wt³/12wt)

b)

Moment of inertia in the direction of width I = t w³/12

R=sqrt(tw³/12wt)

c)

Moment of inertia in the direction of diagonal I= (w t³/12)cos 45=( wt³/12)x 1/sqrt (2)

R= sqrt ( wt³/12xcos45xwt)

4 0
4 years ago
g (b) (4 pt) Write a function unique that identifies the repeated elements of a list and returns a list with unique elements. $
Taya2010 [7]

Answer:

I am writing a Python function unique()    

def unique(list):  # function unique that takes a list as parameter

 unique_list = []  #list to store unique elements

 for elements in list:  # loop that checks every element of the list

   if elements not in unique_list:  # takes unique elements from list

     unique_list.append(elements)  

#appends unique elements  from list to unique_list

 return unique_list      #outputs unique_list elements

         

Explanation:

The unique() function takes a list as argument which is named as list.

unique_list is a new list which stores unique element from the list.

The loop moves through the elements of the list one by one.

if condition checks if the element in list is not present in the unique_list which means that element is unique to the unique_list.

If this condition is true this means that the element is not repeated and is not already present in unique_list. Then that element is included to the unique_list using append() function which appends an element into the unique_list from the list.

If you want to check if this function works you pass a list with repeated elements to this function so that it can print the unique elements as follows:

print(unique([1,2,2,2,2,3,4,4,4,4,4,5]))

Output:

[1, 2, 3, 4, 5]

The screen shot of the function along with its output is attached.

6 0
4 years ago
A hollow aluminum alloy [G = 3,800 ksi] shaft having a length of 12 ft, an outside diameter of 4.50 in., and a wall thickness of
Lisa [10]

Answer:

Horse power = 167.84 hp

Explanation:

Horsepower is calculated using the formula;

P = T * w

See the attached file for the calculation

6 0
4 years ago
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