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
Alex17521 [72]
3 years ago
9

1. El puente mas largo del mundo es el puente Akashi Kaikyo, en Japón. El puente mide 3910 m de largo y está construido con acer

o. ¿Cuánto mas largo es el puente es un dia caluroso de verano (30°C) qué en un día de invierno (- 5°C)?
Physics
1 answer:
bearhunter [10]3 years ago
8 0

Answer:

It's 1.0000042 times longer in summer than in winter. It represents a 1.6 centimeters difference between seasons.

Explanation:

The linear coefficient of thermal expansion for steel is about 1.2*10^{-7}\°C^{-1}. From the equation of linear thermal expansion, we have:

L_f=L_0(1+\alpha\Delta T)

Taking the winter day as the initial, and the summer day as the final, we can take the relationship between them:

L_{summer}=L_{winter}[1+(1.2*10^{-7}\°C^{-1})(30\°C+5\°C)]\\\\L_{summer}=(1.0000042)L_{winter}

It means that the bridge is 1.0000042 times longer in summer than in winter. If we multiply it by the length of the bridge, we obtain that the difference is of about 1.6 centimeters between the two seasons.

You might be interested in
What is your interpretation of 'nothing'? (Talking astrophysics) More answers the better!
Sladkaya [172]
MY personal interpretation of nothing is no atoms or particles of anything. but keep in mind im 11 <span />
5 0
3 years ago
A 20 cm square frame that can rotate about the 00' axis is placed in a homogeneous magnetic field with 0.5T induction directed v
IRISSAK [1]

The solution to this task is f00king Dis.

6 0
2 years ago
Air resistance is an example of what type of friction?
Sav [38]
Well, Air resistance is a special type of friction (you cannot classify it in other categories). That force of air-resistance is often observed to oppose the motion of the object,( like every other frictional forces)

Hope this helps!
4 0
3 years ago
What length of tube would be required to produce a second tone under the same experimental conditions? Explain your answer.
Alisiya [41]

There is an indirect relationship between length and frequency. The longer the length the pipe has, the higher frequency it is. The shorter the length the pipe has, the lower frequency it is.

<u>Explanation:</u>

The four properties of the string that affect its frequency are length, diameter, tension, and density. These properties are described below: When the length of a string is changed, it will vibrate with a different frequency. Shorter strings have higher frequency and therefore higher pitch.

The longer the tube is the lower the pitch of the note that it can emit. When a tube is heated it expands and so is longer! As the gas in the tube gets warmer the molecules move faster, that means they can carry the vibrations of the sound wave more rapidly and so the pitch goes up.

7 0
3 years ago
A greyhound's velocity changes from 10 meters per second to 15 meters per second in 0.5 second. What is the greyhound's average
alexgriva [62]
I think it is 5 m/s  
4 0
3 years ago
Read 2 more answers
Other questions:
  • At what location does gravity play a role in moving tectonic plates
    7·2 answers
  • If you lift one load up two stories, how much work do you do compared to lifting one load up only one story?
    11·1 answer
  • What determines the frequency and amplitude of a vibrating object?
    8·1 answer
  • You are conducting an experiment inside a train car that may move along level rail tracks. A load is hung from the ceiling on a
    12·1 answer
  • Enter the expression 2gΔym−−−−−√, where Δ is the uppercase Greek letter Delta.
    9·1 answer
  • When working with electric charges, what symbol is used in equations to represent the electric field of an object?
    15·2 answers
  • Consider a long cylindrical charge distribution of radius R = 17 cm with a uniform charge density of rho = 15 C/m3. Find the ele
    5·1 answer
  • What are four drawbacks to using fossil fuels in Alberta thermal power stations?
    9·1 answer
  • The rate of change in position at a given point in time
    9·1 answer
  • Caillou wait no what
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!