3 years ago

How high is the tallest building in the world?

Engineering

1 answer:

nekit [7.7K]3 years ago

6 0

Answer:

The Burj Khalifa in Dubai is the tallest building and its height is 2,716 feet.

Explanation:

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Which sentence with an introductory phrase is punctuated correctly?

viktelen [127]

WHERE R THE SENTENCES

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2 years ago

A 400 kg machine is placed at the mid-span of a 3.2-m simply supported steel (E = 200 x 10^9 N/m^2) beam. The machine is observe

Alenkinab [10]

Answer:

moment of inertia = 4.662 * 10^6 $mm^4$

Explanation:

Given data :

Mass of machine = 400 kg = 400 * 9.81 = 3924 N

length of span = 3.2 m

E = 200 * 10^9 N/m^2

frequency = 9.3 Hz

Wm ( angular frequency ) = 2 $\pi f$ = 58.434 rad/secs

also Wm = $\sqrt{\frac{g}{t} }$ ------- EQUATION 1

g = 9.81

deflection of simply supported beam

t = $\frac{wl^3}{48EI}$

insert the value of t into equation 1

W $m^2$ = $\frac{g*48*E*I}{WL^3}$ make I the subject of the equation

I ( Moment of inertia about the neutral axis ) = $\frac{WL^3* Wn^2}{48*g*E}$

I = $\frac{3924*3.2^3*58.434^2}{48*9.81*200*10^9}$ = 4.662 * 10^6 $mm^4$

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3 years ago

What are the 5 basic types of propulsion systems

Basile [38]

Propeller , turbine engine

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3 years ago

What does Clay say will happen if the system is rejected?

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the nation will suffer terrible consequences

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I did that and got it right

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B is the correct answer

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3 years ago