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
I am Lyosha [343]
2 years ago
9

-The concrete sections of a highway are designed to be 25 m long. Sections are prepared at 10°C. What is the minimum space that

must be left between such sections, to avoid sagging, knowing that the asphalt reaches 50ºC?
Data: α=12 10-6 ºC-1
.
Mathematics
2 answers:
Sergeu [11.5K]2 years ago
6 0
Can send you some pics please please let me know if I need to get to
Vadim26 [7]2 years ago
4 0

Let <u>d = distance between two plates</u>, <u>L = length of a plate</u>, and assuming that the coefficient provided is that of linear expansion, the elongation of a section is<u> </u><u>∆L = Lα (T₂ - T₁) = 0, 012 m</u><u> </u>. Assuming that the elongation is shared equally to both sides of each section, when two sections are in contact, it is fulfilled

\pmb{\dfrac{d}{2}=\dfrac{\Delta L}{2 }\Rightarrow d=\Delta L=0,012 m= 1,2 cm} \\\\\\\boxed{\pmb{d=1,2 \ cm}}

You might be interested in
Need an answer for this question
Natasha_Volkova [10]
Answer: f(-2)=6.
Explanation: Since -2 is less than 1 you plug it into the top equation for -(-2)+4 = 2+4 =6
5 0
2 years ago
The coldest surface temperature on the Moon is 57 degrees colder than twice the coldest surface temperature on Earth. What is th
german
28.5  is the coldest surface temperature on Earth
5 0
3 years ago
A bag contains 3 red marbles and 6 blue marbles. A second bag contains 6 green marbles and 4 yellow marbles. You choose a marble
Solnce55 [7]

Answer:

4/15

Step-by-step explanation:

Bag A

3 red marbles and 6 blue marbles.  = 9 marbles

P(blue) = blue/total =6/9 = 2/3

Bag B

6 green marbles and 4 yellow marbles.  = 10 marbles

P(yellow) = yellow/total=4/10 = 2/5

P(blue,yellow) = 2/3 * 2/5 = 4/15

3 0
3 years ago
HELP ASAPPPP!!!BRAINLEST WILL BE GIVEN!!! ​
liraira [26]

Answer:

30 days

Step-by-step explanation:

The common multiples of 15 and 6 are 30, 60, 90 etc and because it increases by 30 each time we can find out that he will play both football and basketball together in thirty days!

8 0
2 years ago
What is the greatest number of cups that can be completely filled with water from the container
Elan Coil [88]

Answer:

Step-by-step explanation:

I have mathswatch work too do as well so its kinda annoying lol

so first we need to find the volume of the cuboid

36cm x 6cm x 23cm= 4968cm³

2/3x4968=3312cm³

3312/275=12.04

maximum amount of cups is 12

5 0
3 years ago
Other questions:
  • 10 POINTS<br> Find the surface area of the regular pyramid. Round to the nearest tenth if necessary.
    12·2 answers
  • PLEASE HELP PLEASE HELP PLEASE HELP PLEASE HELP PLEASE ヽ( 'ω' )ノ
    15·1 answer
  • I spent $6 and my friend spent 1 1/4 more than I did...how much more than me did she spend?
    10·1 answer
  • 2. If tan 0 = 3/4, find Sin 20​
    12·1 answer
  • What two numbers add together give me -9 but multiply together give me 18
    12·1 answer
  • The ratio of boys to girls that went to great American on the 8th grade trip was 3 to 5 period if there were 320 students that w
    8·1 answer
  • Help pleasee its due at 8:00 pm
    5·1 answer
  • Briana buys a reel of thread for sewing. Th ere are 10 m of thread on the real. Her brother in grade 4 used 210 cm. How much is
    13·1 answer
  • Write the equation of the vertical line that goes through the point<br> (3, 4).
    13·1 answer
  • Complete the statement.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!