Engineering » Page 49

Engineering

Select the characteristics of an ideal operational amplifier.

1 / Zero gain for the common-mode input signal.

2 / Zero bandwidth

3 / Infinite gain for the differential input signal.

4 / Zero output impedance.

5 / Zero gain for the differential input signal.

6 / Infinite input impedance.

7 / Infinite bandwidth.

8 / Infinite output impedance.

9 / Zero input impedance.

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Engineering

When you are driving in bad weather or bad road

conditions, you should

Follow a little bit closer to the vehicle in front of

you than you normally would.

8

Use one and a half times the following distance

that you use in good conditions.

Use two times the following distance that you

use in good conditions.

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Engineering

Considering a closed, stationary, rigid container with certain gas inside, the total mass of the gas is 2 kg, and a heating process goes from state 1 with internal energy 100 kJ/kg to state 2 with internal energy 200 kJ/kg. Find the overall heat transfer into the system during the process.

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Engineering

Flat ball flat on the field. what forces are acting upon it?

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Engineering

Can someone draw a electric circuit with electrical symbols for this

"In the hall there is one light bulb that can be turned on and off at both ends of the room and an electric bell. The room has two floor lamps that turn on on the spot and one socket without grounding for the TV."

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Engineering

Compressing a vapor?

A. decreases the pressure and decreases the temp.

B. increases the pressure and increases the temp.

C. decreases the pressure and increases the temp.

D. increases the pressure and decreases the temp.

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Engineering

Discuss two advantages

and two disadvantages

of using robots instead of

people in manufacturing

plants.

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Engineering

Zona intermedia de pozos

Y

Efecto de inavasion

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Engineering

Torque is a twisting force. If the required torque applied on a 3 ft wrench is 45 ft·lb, what is the force that must be applied?

A) 135 lbs

B) 15 lbs

C) 135 ft·lbs

D) 15 rpm

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Carolyn Guerrero

Engineering

A small lake with volume of 160,000 m^3 receives agricultural drainage waters that contain 150 mg / L total dissolved solids (TDS). The drainage waters are the only source of water into the pond and evaporation is the only loss of water from the pond. Fluxes of water due to both evaporation and drainage water are 60,000 m^3 / year (the volume of the water in the lake will not change with time). If the lake is initially filled with water with 100 mg / L TDS, after how many years will the lake no longer be considered to contain freshwater?

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Engineering

Can you tell me important facts about Peggy A. Whitson?

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Engineering

You are not changing the carrier signal, only the message. In the scope the center Page 5 of 6 frequency should remain at 14kHz, the frequency span at 20kHz and the dB/div at 15dB. Here are the AM signal in time domain and its frequency spectrum. Explain what you see. (Hint: Remember the Fourier analysis of the square wave performed in Lab #3.)

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Engineering

Which situation might cause potential hazards at a construction site?

OA. safety nets

B.

ladder placed with side rails three rails above the landing

OC. covered holes

OD. protruding steel rebars

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Izabelle Brewer

Engineering

What does the Charpy test determine? (a) Yield strength (b) Fracture strength (c) Young's modulus Toughness e) Ductility

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Engineering

What is the weight density of a cylinder that has a diameter of 4.0 inches and a height of 10.0 inches? The cylinder weighs 2.0 lb.

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