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3 years ago

15

Please help this is the last question and determines wether I pass or not

1 answer:

givi [52]3 years ago

3 0

Hopefully I’m not too late, but here’s how I solved it. Basically, replace F with 68. Subtract 32 from both sides so your equation becomes 9/5C=36. Divide both sides by 9/5 so C is left but itself (C=36/1.8). The answer should come out to 20. If you want to check my answer, plug 20 into the equation. Multiply 20x9/5 which equals 36. Add 36 and 32 together to get 68. Hope this helps

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An engineer is designing a runway for an airport. Several planes will use the runway and the engineer must design it so that it

swat32

Answer:

d=117.33 m

Step-by-step explanation:

Initial velocity of planes, u = 0 (because they are at rest)

Acceleration, a = 3.3 m/s²

Final take off speed, v = 88 m/s

We need to find the minimum allowed length for the runway. Let it is d. d will be the distance. It can be calculated using third equation of motion as follows :

$v^2-u^2=2ad\\\\d=\dfrac{v^2-u^2}{2a}$

Putting all the values, we get :

$d=\dfrac{88^2-0^2}{2\times 33}\\\\d=117.34\ m$

Hence, the minimum allowed length for the runway is 117.33 m.

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3 years ago

A swimming pool has a rectangular base 10 ft long and 20 ft wide. The sides are 4 ft high, and the pool is half

Lostsunrise [7]

Answer:74880 ft.lb

Step-by-step explanation:

Given

Dimension of pool

base=10 ft

width=20 ft

height=4 ft

Pool is half filled

volume of Pool $=10\times 20\times 2=400 ft^3$

mass of water $=\rho \times volume$

mass $=62.4\times 400=24,960 lb$

This pool is in the form parallelepiped therefore average distance $=\frac{4+2}{2}=3$

Work $= 249600\times 3=74880 ft.lb$

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3 years ago

The interior angle of a triangle has measures 100°,4y+25 and 3y +20.what is the value of y?

mrs_skeptik [129]

Answer:

y=5

Step-by-step explanation:

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3 years ago

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FromTheMoon [43]

What kind of math problems?

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Ivahew [28]

Answer:

Step-by-step explanation:

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3 years ago