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
Readme [11.4K]
3 years ago
8

The aircraft wing from problem 6 experiences temperature extremes that span 210 degrees Celsius. The component for the wing will

have a length of exactly 3 meters. Testing indicates that the aircraft wing will remain stable only if the component never expands to a length larger than 3.017 meters. If the component is made from the metal alloy in question, will it meet this requirement. An unknown metal alloy is being tested to discover its thermal properties to see if it is suitable for use as a component in an aircraft wing. The alloy is formed into a bar measuring 1 meter in length, and is then heated from its starting temp. of 30°C to a final temperature of 100°C. The length of the heated bar is measured to be exactly 1.002 meters in length.
Required:
What is the coefficient of thermal expansion of the alloy?
Physics
1 answer:
ExtremeBDS [4]3 years ago
5 0

Answer:

α = 2,857 10⁻⁵ ºC⁻¹

Explanation:

The thermal expansion of materials is described by the expression

          ΔL = α Lo ΔT

          α = \frac{\Delta L}{L_o \ \Delta T}

in the case of the bar the expansion is

         ΔL = L_f - L₀

         ΔL=   1.002 -1

         ΔL = 0.002 m

the temperature variation is

         ΔT = 100 - 30

         ΔT = 70º C

we calculate

         α = 0.002 / 1 70

         α = 2,857 10⁻⁵ ºC⁻¹

You might be interested in
A car is traveling south at a speed of 69 miles per hour and then begins traveling west but continues traveling at the same spee
alexandr1967 [171]
Velocity
Because velocity is speed with direction. In this scenario, the speed has not changed, but the direction did.
8 0
3 years ago
A constant magnetic field passes through a single rectangular loop whose dimensions are 0.35 m × 0.55 m. The magnetic field has
Pani-rosa [81]

Answer:

Part a)

EMF = 0.38 V

Part b)

\frac{dA}{dt} = 0.43 m^2/s

Explanation:

Part a)

Initial value of magnetic flux is given as

\phi_1 = BAcos\theta

\phi_1 = (2.1)(0.35 \times 0.55) cos65

so we have

\phi_1 = 0.17 Wb

Final flux through the loop is given as

\phi_2 = 0

now EMF is given as

EMF = \frac{\phi_1 - \phi_2}{\Delta t}

EMF = \frac{0.17 - 0}{0.45}

EMF = 0.38 V

Part b)

If magnetic field is constant while Area is changing

So EMF is given as

E = Bcos65 \times \frac{dA}{dt}

0.38 = 2.1 cos65(\frac{dA}{dt})

\frac{dA}{dt} = 0.43 m^2/s

5 0
3 years ago
In the past, the intensity of the Earth's magnetic field was _____. A. greater B. weaker C. same D. evidence is inconclusive?
Margarita [4]
I'd say a because it says it's magnetic field as decreased by 10% in the last century
7 0
3 years ago
Read 2 more answers
Example of electrical to mechanical​
Sonja [21]

Answer:

dynamo generator could be the right ans

6 0
3 years ago
Read 2 more answers
Julio was standing at the Om line and ran west to the 50m line in 5s. What
rodikova [14]
The answer is 10 m/s west.
7 0
3 years ago
Other questions:
  • As part of an interview for a summer job with the Coast Guard, you are asked to help determine the search area for two sunken sh
    11·1 answer
  • A single insulated duct flow experiment using air operating at steady-state is performed in a lab. One measurement location (Sta
    7·1 answer
  • FIRST ANSWER IS BRAINIEST TAKE YOUR TIME I NEED RIGHT ANSWERS FIRST ANSWER IS BRAINIEST ANSWER TAKE YOUR TIME NEED RIGHT ANSWER
    14·2 answers
  • Which of the following is not true about the Global Positioning Systems (GPS)?
    13·1 answer
  • Equal force is applied to a baseball, a basketball, a tennis ball, and a bowling ball. Which ball will have the GREATEST acceler
    11·1 answer
  • Which of the following forms of light can be observed with telescopes at sea level?Select all that apply.Select all that apply.X
    7·1 answer
  • Velocity is a vector quantity which has both magnitude and direction. Using complete sentences, describe the object's velocity.
    15·1 answer
  • If the average mass of an adult is 86kg. Determine the mass and weight of an 86kg man in the moon where gravitational field is o
    12·1 answer
  • AP physics here! Please help me answer only this question and then explain how you got your answer. After that, I will do the re
    7·1 answer
  • When developing an experimental design, which action would improve the
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!