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tigry1 [53]
3 years ago
8

If the scale factor between two similar solids is 2:5, then the ratio of their lateral areas is 4:10

Mathematics
1 answer:
Lena [83]3 years ago
7 0
No.
The ratio of the areas is the ratio of the squares of the scale factor.
So it's  2^2 : 5^2  = 4:25
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Solve for x<br>7x = 2<br>Give your answer as a fraction in its simplest form​
Anastasy [175]

Answer:

2/7

Step-by-step explanation:

7x/7=2/7

Simplify:Cancel terms that are both the numerator and denominator

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3 years ago
Determine the moment m that will produce a maximum stress of 70 mpa on the cross-section
gogolik [260]

The moment M that will produce a maximum stress of 70 MPa on the cross-section of 177.3 will be 13.533 kN-m.

<h3>What is bending stress?</h3>

Bending stress is the typical stress that an item experiences when it is exposed to a heavy load at a specific spot, causing it to bent and fatigue.

The moment of inertia above the neutral axis will be

Iₓₓ = 99 x 84.7³/3 - (99 - 12 x 3) (84.7 - 12)³/3

Iₓₓ = 11983247 mm⁴

The moment of inertia below the neutral axis will be

Iₓₓ = 2 x 12 x (87 - 84.7)³/3 + 12 x 177.3³/3

Iₓₓ = 22294005 mm⁴

Then the moment of inertia about the neutral axis will be

Iₓₓ = + 11983247 + 22294005

Iₓₓ = 34277252 mm⁴

Then for maximum bending stress, we have

M = σ x Iₓₓ / y(max)

We have

σ = 70 MPa

Iₓₓ = 34277252 mm⁴

y(max) = 177.3

Then we have

M = 70 x 34277252 / 177.3

M = 13.533 kN-m

More about the bending stress link is given below.

brainly.com/question/24227487

#SPJ4

8 0
2 years ago
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Readme [11.4K]

Answer:

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Step-by-step explanation:

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erica [24]
If using the radius, you would multiply the radius by 2*pi, to calculate the circumference, which should be the same as the answer i got.

3 0
3 years ago
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