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3 years ago

What do you need for an object to fly?

Engineering

1 answer:

Kipish [7]3 years ago

7 0

Answer:

To fly, an aircraft needs something to push it in the opposite direction from gravity. The weight of an object controls how strong the push has to be.

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A combinational switching circuit has four inputs (A, B, C, D) and one output (F).

DochEvi [55]

Answer:

The answer of the above question include complicated equations and Diagrams.It is difficult to write it there. You can find the answers in deatailed way in the attached files.

Explanation:

7 0

4 years ago

A. Briefly describe the microstructural difference between spheroidite and tempered martensite. Explain why tempered martensite

masha68 [24]

Answer:

Answered below.

Explanation:

A) Both spheroidite & tempered martensite possess sphere - like cementite particles within their microstructure known as a ferrite matrix. However, the difference is that these particles are much larger for spheroidite than tempered.

B) Tempered martensite is much harder and stronger than spheroidite primarily because there is much more ferrite - cementite phase boundary area for its sphere - like cementite particles.

This is because the greater the boundary area, the more the hardness.

4 0

3 years ago

A flow of 12 m/s passes through a 6 m wide, 2 m deep rectangular channel with a bed slope of 0. 001. If the mean velocity of flo

prohojiy [21]

Answer:

manning's coefficient is 0.0357

Explanation:

Given:

Velocity of flow, v = 12 m/s

Width of the channel, b = 6 m

Depth of the channel, d = 2 m

bed slope, s = 0.001

mean velocity of flow, V = 1 m/s

now, the velocity is given as:

$V= \frac{1}{n}R^{\frac{2}{3}}S^{\frac{1}{2}}$

where,

n is the manning's coefficient

R is hydraulic mean depth

R = (Area of the channel) / (wetted Perimeter of the channel)

now,

R = (2 × 6) / ((2 × 2) + 6)

R = 12 / 10 = 1.2 m

now, on substituting the values in the equation for velocity, we get

$1= \frac{1}{n}1.2^{\frac{2}{3}}(0.001)^{\frac{1}{2}}$

$n= 1.2^{\frac{2}{3}}(0.001)^{\frac{1}{2}}$

n = 0.0357

hence, the value of manning's coefficient is 0.0357

8 0

3 years ago

Principals of Construction intro

Nadusha1986 [10]

Answer:

The answer is safety documents

Explanation:

Every company is responsible

For people documents

Is very important for every company

8 0

3 years ago

"A fluid at a pressure of 7 atm with a specific volume of 0.11 m3/kg is constrained in a cylinder behind a piston. It is allowed

AlekseyPX

Answer:

Work done by the fluid in the piston=164.5kJ/kg

Specific gas constant= 0.263 kJ/kg K

Molecular weight of gas= 31.54 kmol

7 0

4 years ago