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3 years ago

____ technologies are new technologies that are not currently widely employed.

Engineering

2 answers:

otez555 [7]3 years ago

8 0

C emerging bc they’re still being made

777dan777 [17]3 years ago

5 0

Answer:

I believe the answer is Emerging

Explanation:

BEcause Emerging is not quite being used as much publicaly and there really new

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BE-14 Where must registration numbers be displayed? Bow Stern Engine 11 Transom

kondor19780726 [428]

Answer:

A. Bow

Explanation:

Registration number is an evidence or authentication of registration of a vessel or vehicle. This number is very important when an emergency occurs and there is a need to trace the vessel to the owner. And this should be displayed on a vertical surface or a surface where easy view is achievable.

So it is recommended that registration numbers be displayed on the bow of the vessel. The number should be displayed in such a way that it could be read from left to right.

6 0

3 years ago

Read 2 more answers

Q6. Ask for two numbers. If the first one is larger than the second, display the second number first and then the first number,

Shalnov [3]

Answer:

Number1 = input("Choose a number: )

Number2 = input("Choose a second number: )

if number1 > number2:

print(number2\nnumber1)

else:

print(number1\nnumber2)

Explanation:

I'm assuming that you want it in python.

6 0

2 years ago

Estimate the rotor inertia assuming that the rotor is a cylinder of radius 8.98 mm, and length 25 mm, with a material of 100% co

Softa [21]

Answer:

The moment of inertia of the rotor is approximately $1.105\times 10^{-6}$ kilogram-square meters.

The rotor inertia may differ from these assumption due to differences in the shape of cross section.

Explanation:

We assume that rotor can be represented as a solid cylinder of radius $r$ , length $l$ , made of cooper ( $\rho = 8960\,\frac{kg}{m^{3}}$ ) and whose axis of rotation passes through its center of mass and is parallel to its cross section. By definition of Moment of Inertia and Theorem of Parallel Axes, the moment of inertia of the rotot is:

$I = \frac{1}{4}\cdot \rho \cdot \left(\frac{\pi}{4} \right) \cdot R^{3}\cdot (3\cdot R^{2}+L^{2})$

$I = \frac{\pi}{16}\cdot \rho \cdot R^{3}\cdot (3\cdot R^{2}+L^{2})$ (Eq. 1)

Where:

$\rho$ - Density of copper, measured in kilograms per cubic meter.

$R$ - Radius of the rotor, measured in meters.

$L$ - Length of the rotor, measured in meters.

$I$ - Moment of inertia, measured in kilogram-square meters.

If we know that $\rho = 8960\,\frac{kg}{m^{3}}$ , $L = 25\times 10^{-3}\,m$ and $R = 8.98\times 10^{-3}\,m$ , the estimated moment of inertia of the rotor is:

$I = \frac{\pi}{16}\cdot \left(8960\,\frac{kg}{m^{3}} \right)\cdot (8.98\times 10^{-3}\,m)^{3}\cdot [3\cdot (8.98\times 10^{-3}\,m)^{2}+(25\times 10^{-3}\,m)^{2}]$

$I \approx 1.105\times 10^{-6}\,kg\cdot m^{2}$

The moment of inertia of the rotor is approximately $1.105\times 10^{-6}$ kilogram-square meters.

From D'Alembert's Formula we know that net force of rigid bodies experimenting rotation equals the product of moment of inertia and angular acceleration. In this case, the purpose is minimizing moment of inertia and it is done by modifying the shape of the cross section so that rotor could be aerodynamically more efficient.

5 0

3 years ago

The flow between two infinitely flat parallel plates displays a parabolic profile, and is called plane Poiseulle flow.

murzikaleks [220]

Answer:

a. True

Explanation:

The study of fluids in a state of rest or in motion and the forces involved in it is called fluid mechanics. Fluid mechanics has a wide range of applications in the field of mechanical engineering as well as civil engineering.

When we study the flow of fluid between any two flat plates that is indefinitely flat and is parallel, the flow of the fluid is known as plane Poiseulle flow. The profile of a plane Poiseulle flow is parabolic.

The velocity profile of a plane Poiseulle flow is :

$\frac{u(y)}{U_{max}}=1-\left(\frac{2y}{h}\right)^2$

Thus the answer is TRUE.

6 0

3 years ago

Injection melding is a process that

Bumek [7]

Answer:

mark brainliest :)

Explanation:

Injection Molding. Injection molding is the most commonly used manufacturing process for the fabrication of plastic parts. ... The plastic is melted in the injection molding machine and then injected into the mold, where it cools and solidifies into the final part.

Materials: Thermoplastics

5 0

3 years ago