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Engineering

Hana Brown

In a piece of aluminum you want to make a pocket (milling of cavities), an end mill tool of 6 mm in diameter and 4 cutting sides will be used, the height of the cutting sides of the tool is 25 mm. The feed that will be taken per tooth will be 0.00003 meters / tooth, and a linear feed rate of 2.4 mm / second. Calculate the cutting speed in mts / min.

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Engineering

Kaeden Holmes

If a vehicle is equipped with radial tires, the tires should be mounted on which of the following? a. Only on the front wheels of the POV. b. Only on the rear wheels of the POV. c. On all four wheels. d. On the drive wheels of the POV.

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Engineering

Jolie Harvey

What is the area of the triangle? v

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Engineering

Journey Juarez

Given two resistors R1=40 ohm and R2=30 ohm connected in series, what is the total resistance of this configuration? Enter the value in the box below without the unit. Round the result to two decimal places if necessary. For example if the answer is 10.333 ohm, put 10.33 in the box.

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Engineering

Leonidas Barrett

The current source in arc welding may be either blank or blank

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Engineering

Andreas

Define what a glass transition is and what happens to a polymer because of it

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Engineering

Darien

What made computers different from machines that came before them?

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Engineering

Jamie Rojas

What is the difference between real and roller coaster car?

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Engineering

Brenna Farmer

A company, which makes forging die wants to improve their steel parts and they contacted you because they heard you know a technology using martensitic transformation to make the surface of their steel product hard. The company selected AISI 1008 steel for their product, but after heat treatment they have no idea how to verify whether the heat treatment did a sufficient job or not.

a. What test will tell whether the heat treatment was good enough?

b. If you have hardness test among the potential testing methods in the list what kind of hardness tests are available and what specific hardness test are you going to suggest to the company? And why?

c. After suggesting the methodology to the company, the company engineer came back with a very low hardness value. What went wrong?

d. What is the solution you want to provide to the company and why?

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Engineering

Iyana Michael

There are 10 vehicles in a queue when an attendant opens a toll booth. Vehicles arrive at the booth at a rate of 4 per minute. The attendant opens the booth and improves the service rate over time following the function u (t) = 1.1 +.30t, where u (t) is in vehicles per minute and t is in minutes. I need to find the maximum queue length. I included my solution below for the total delay.

u (t) = 4 when t = (4-1.1) / 0.3 = 9.67mins

(9.67 to t) ? (1.1+0.3t) dt = 10

? 1.1t + 0.15t2 ] (9.67 to t) = 10

? t = 11.97mins

So, delay = 11.97 - 9.67 = 2.30mins

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Engineering

Memphis Mason

To do a research, a researcher needs to be clear about what he/she is doing, why he/she is doing it and the associated implications of what he/she is about to do. A. True B. False

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Engineering

Hailie Patton

Steam enters and leaves a horizontal 1D pipe steadily at a constant speed with the specific enthalpy to be 4000 kJ/kg and 1500 kJ/kg respectively. Assuming a mass flow rate of 0.5 kg/sec and If there is no significant change in potential energy from inlet to exist, determine the rate of heat transfer between the pipe and its surroundings.

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Engineering

Aliya

You notice a new associate from another area is not wearing his required safety glasses. This is the second time you've noticed this.

What would you be most and least likely to do?

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Engineering

Lorena

To reduce the drag coefficient and thus improve the fuel efficiency of cars, the design of side rearview mirrors has changed dramatically in recent decades from asimple circular plate to a streamlined shape. Determine the amount of fuel and moneysaved per year as a result of replacing a 15-cm-diameter flat mirror by one with ahemispherical back. Assume the car is driven 25,000 km a year at an average speedof 95 km/hr. Take the density and price of gasoline to be 0.75 kg/L and $0.90/L, respectively; the heating value of gasoline to be 44,000 kJ/kg and the overall efficiencyof the engine to be 30 percent.

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Engineering

Elian Fitzpatrick

What are the main branches of engineering

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