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2 years ago

A wheel spins at a constant angular speed of 24rad/s.How many revolutions will the dosk go through in 5minutes?

Engineering

1 answer:

Margaret [11]2 years ago

5 0

<u>Answer:</u>

The wheel will go through 1146 revolutions in 5 minutes.

<u>Explanation:</u>

We can the formula:

$\boxed{\omega = \frac{2 \pi}{T}}$

where

ω ⇒ angular speed (24 rad/s),

T ⇒ time period (? s),

and solve for T to find the time it takes for the wheel to complete one revolution.

⇒ $24 = \frac{2 \pi}{T}$

⇒ $T = \bf \frac{2 \pi}{24}$ s

This means it takes $\bf \frac{2 \pi}{24}$ seconds for the wheel to complete one revolution.

Now, using the unitary method,

In $\frac{2 \pi}{24}$ seconds ⇒ 1 revolution completed

In 1 second ⇒ 1 ÷ $\frac{2 \pi}{24}$ = $\frac{24}{2 \pi}$ revolutions completed

In (5 × 60 = ) 300s ⇒ $\frac{24}{2 \pi}$ × 300 = 1145.9

≅ 1146 revolutions completed

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Answer:

It is because constraints applied automatic by the software (CAD) are supposed to control relationships and geometry between lines, arcs and circles while those manually added are supposed to control the geometry to behave in the manner the user likes the sketch to appear when drawing.

Explanation:

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3 years ago

Consider a fan located in a 3 ft by 3 ft square duct. Velocities at various points at the outlet are measured, and the average f

natulia [17]

Answer:

minimum electric power consumption of the fan motor is 0.1437 Btu/s

Explanation:

given data

area = 3 ft by 3 ft

air density = 0.075 lbm/ft³

to find out

minimum electric power consumption of the fan motor

solution

we know that energy balance equation that is express as

E in - E out = $\frac{dE \ system}{dt}$ ......................1

and at steady state $\frac{dE \ system}{dt}$ = 0

so we can say from equation 1

E in = E out

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put here value

E in = $\rho A V \frac{V^2}{2}$

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E in = 0.1437 Btu/s

minimum electric power consumption of the fan motor is 0.1437 Btu/s

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3 years ago

. En la facultad de Ingeniería Industrial se realizó una encuesta a 200 personas para saber que lenguaje de programación preferí

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Explanation:

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3 years ago

Explain why advances in technology can actually create more problems for engineers.

andrew11 [14]

Explanation:

Engineering is science in practical terms. It is the application of scientific findings in problem solving and creating a better world.

How does technological advancements create more problems for engineers?

Loss of job to automation: the world is driving at automating work processes through the use of specially designed and crafted machinery. Work is now properly being done using machines with little to no human input in the whole process. This is a huge let off for engineers. Engineers have to compete with machines which are their own inventions for jobs now.
Fast paced work environment: machines can handle work more efficiently and faster than the people making them. There is an increasing race between engineers and their own inventions today for better product delivery. Unless a machine is faulty, they are more productive and efficient than man. This can cause engineers to want to catch up with their own inventions leading to a work life of stress.
Environmental problems they cannot solve: most inventions use components from the environment. They release effluents that are very difficult to be properly disposed or stored. This is a huge problem for engineers and can lead to ethical calls from the government and the populace. In short, they can create problems they are expected to solve but cannot solve.
Social problems: engineers can be portrayed as terrible beings for their own inventions. This leads to psychological problems on a good and creative invention. For example, rare earth metals in DR Congo are instrumental in making solar panels, but mining of these metals have forced several thousands of people into hard and intense labor on mines; there is a call on technological firms to stop exploiting people this way for their own gains.
Misuse of technology: any good technology can be put into the wrong use. A nuclear reaction can be packaged into a bomb and also, it can be the center of electricity generation on a commercial scale. How can engineers solve this kind of problem? Technological inventions are subjective in their usage.

Learn more:

New technology brainly.com/question/5768621

#learnwithBrainly

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3 years ago

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Gelneren [198K]

Answer:

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