1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
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.

You might be interested in
¿Cómo nos podría ayudar una hoja de cálculo en nuestro estudio?
Ghella [55]

Las hojas de cálculo en Excel facilitan los cálculos numéricos a través del uso de fórmulas; de manera fácil y rápida se pueden hacer operaciones aritméticas sobre cientos de miles de datos numéricos; por lo que se puede actualizar o corregir cualquiera de los datos numéricos y las operaciones se recalculan

3 0
3 years ago
In order to avoid a rollover, what is the highest degree incline one should mow on? 10-degree incline 5-degree incline 30-degree
ser-zykov [4K]

Answer: B: 20-degree incline

Explanation:

A tractor user should avoid slopes of more than 20 degrees in order to avoid rollovers

6 0
3 years ago
The statement that is NOT true about the concept of a boundary layer on an object is: a. the Reynolds number is greater than uni
Ilya [14]

Answer:

Option E

Explanation:

All the given statements are true except the velocity gradients normal to the flow direction are small since these are not normally small. It's true that viscous effects are present only inside the boundary layer and the fluid velocity equals the free stream velocity at the edge of the boundary layer. Moreover, Reynolds number is greater than unity and the fluid velocity is zero at the surface of the object.

5 0
3 years ago
In a much smaller model of the Gizmo apparatus, a 5 kg mass drops 86 mm (0.086 m) and raises the temperature of 1 gram of water
Orlov [11]

Answer:

The amount of energy transferred to the water is 4.214 J

Explanation:

The given parameters are;

The mass of the object that drops = 5 kg

The height from which it drops = 86 mm (0.086 m)

The potential energy P.E. is given by the following formula

P.E = m·g·h

Where;

m = The mass of the object = 5 kg

g = The acceleration de to gravity = 9.8 m/s²

h = The height from which the object is dropped = 0.086 m

Therefore;

P.E. = 5 kg × 9.8 m/s² × 0.086 m = 4.214 J

Given that the potential energy is converted into heat energy, that raises the 1 g of water by 1°C, we have;

The amount of energy transferred to the water = The potential energy, P.E. = 4.214 J.

6 0
3 years ago
A team of engineers is designing a new rover to explore the surface of Mars. Which statement describes the clearest criterion fo
stich3 [128]

Answer:

hello im new trying to get points

Explanation:

3 0
3 years ago
Other questions:
  • A petrol engine produces 20 hp using 35 kW of heat transfer from burning fuel. What is its thermal efficiency, and how much powe
    14·1 answer
  • Practice Problem: Large-Particle CompositesThe mechanical properties of a metal may be improved by incorporating fine particles
    5·1 answer
  • 1- A square-wave inverter has a dc source of 96 V and an output frequency of 60 Hz. The load is a series RL load with R = 5 Ohm
    7·1 answer
  • A square isothermal chip is of width w = 5 mm on a side and is mounted in a substrate such that its side and back surfaces are w
    7·1 answer
  • Need Answers Quick!!!! What is the purpose of structural components such as frames, bearings, and mounts? A.) Connect two rotati
    9·1 answer
  • Which power transfer system is most suitable for the food processing industry?
    13·1 answer
  • Determine the reactor volume (assume a CSTR activated sludge aerobic reactor at steady state) required to treat 5 MGD of domesti
    5·1 answer
  • A motor driven water pump operates with an inlet pressure of 96 kPa (absolute) and mass flow rate of 120 kg/min. The motor consu
    7·1 answer
  • In homes today, what is behind the reason for flashover fires occurring much more rapidly than in the past generations?
    8·1 answer
  • A driver complains that his front tires are wearing
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!