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Engineering

Nolan Leach

Consider a sinusoidal oscillator consisting of an amplifier having a frequency-independent gain A (where A is positive) and a second-order bandpass filter with a pole frequency ω0, a pole Q denoted Q, and a positive center-frequency gain K. a) Find the frequency of oscillation, and the condition that A and K must satisfy for sustained oscillation.

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Engineering

Caiden Keller

A mass is dropped (i. e., initial v=0) from the top of a tall building at a height of 300 m. If we neglect air friction, find the velocity of the object when it hits the ground (m/s). g = 9.8 m/s^2

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Engineering

Izaiah Lucas

An engineer is considering time of convergence in a new Layer 3 environment design. Which two attributes must be considered? (Choose two)

A. Addition of a valid forwarding path

B. Loss of a valid forwarding path

C. SPT timers update

D. OSPF database updates

E. Forwarding table updates

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Engineering

Haney

How does a carburetor work?

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Engineering

Lisa

A cylindrical bar of metal having a diameter of 20.9 mm and a length of 205 mm is deformed elastically in tension with a force of 45200 N. Given that the elastic modulus and Poisson's ratio of the metal are 68.8 GPa and 0.32, respectively, determine the following: (a) The amount by which this specimen will elongate in the direction of the applied stress. (b) The change in diameter of the specimen. Indicate an increase in diameter with a positive number and a decrease with a negative number.

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Engineering

Susan Mcconnell

What technology did Dr. Nagyvary use in his experiments

to re-create the violins?

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Engineering

Spencer Horn

Estimate the endurance strength of a 1.5-in-diameter rod of AISI 1040 steel having a machined finish and heat-treated to a tensile strength of 110 kpsi, loaded in rotating bending.

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Engineering

Maya Harrington

What is cyclic fatigue? Why is important for engineers to understand cyclic fatigue? Do materials all experience fatigue the same way?

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Engineering

Danica Wood

A rectangular beam has a cross section of 5 cm wide by 10 cm deep and a maximum shear of 2250 N. What is the maximum shear stress in the beam? (a) 416 kPa (b) 675 kPa (c) 567 kPa (d) 790 kPa

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Engineering

Isaac Pena

On a cold winter day, wind at 55 km/hr is blowing parallel to a 4-m high and 10-m long wall of a house. If the air outside is at 5o C and the surface temperature of the wall is 12o C, find the rate of heat loss from the wall by convection

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Engineering

Maestro

Is engineering the right choice for someone who wants to be a millionaire?

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Engineering

Christopher Roth

The drive force for diffusion is 7 Fick's first law can be used to solve the non-steady state diffusion. a) - True b) - False

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Engineering

Erik Stanton

Let A→ = (150iˆ+270jˆ) mm, B→ = (300iˆ-450jˆ) mm, and C→ = (-100iˆ-250jˆ) mm. Find scalars r and s, if possible, such that R→=rA→+sB→+C→ has zero x and y components.

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Engineering

Troy Byrd

A volume of 0.3 m3 of O2 at 200 K and 8 MPa is mixed with 0.5 m3 of N2 at the same temperature and pressure, forming a mixture at 200 K and 8 MPa. Determine the volume of the mixture, using (a) the ideal-gas equation of state, (b) Kay's rule, and (c) the compressibility chart and Amagat's law.

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Engineering

Antwan

This search compares the target value with the middle element in the collection, then ignores the half of the collection in which the target cannot exist a) Linear b) Exponential c) Interpolation d) Binary

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