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chubhunter [2.5K]
4 years ago
13

Consider a boundary layer along a thin plate. This problem involves the following parameters such as boundary layer thickness de

lta, downstream distance x, free-stream velocity U, fluid density rho, fluid viscosity mu. The number of expected nondimensional parameters, pi subscript s of this problem is________

Engineering
1 answer:
Rama09 [41]4 years ago
6 0

Answer:

look at the page attached.

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What is the the force available at the roadway surface to perform work?
scoray [572]

Answer:

Tractive force or traction

Explanation:

The main purpose of the tractive forces is to improve the ability to <u>transform the engine's energy into the vehicle's movement.</u> There are several systems that have different qualities and uses. Here we explain how they work and what they are for.

In a traction vehicle with one of its axles, its ability to transmit engine power to the ground is limited for two reasons:

-  At least one of the wheels must have adhesion, and this as long as it has a self-locking differential. Otherwise, simply with one lacking grip, we can no longer move forward.

- If there are two wheels that must distribute the power, it will always be easier to saturate the traction capacity of the tire than if we divide the force by four. The example is very simple: if we try to drag an object on the ground by pulling a rubber, it will stretch more than if we pull 4 identical tires, although the force we make is the same.

Contrary to what one might think, all-wheel drive vehicles are nothing recent. What happens is that it did take time to reduce the weight and size, as well as to increase the resistance of the homokinetic joints (they are articulations on the axles to allow the wheel to go up and down with the suspension or turn with the steering) to to adapt these systems to cars.

7 0
3 years ago
10. True or False? A disruptive technology<br> radically changes the way people live and<br> work.
Anettt [7]

Answer:

<u>True</u>

Explanation:

According to Investopedia.com, "Disruptive technology is an innovation that significantly alters the way that consumers, industries, or businesses operate".

So yes, a disruptive does radically change the way people live and work.

5 0
3 years ago
Read 2 more answers
You are given a noninverting 741 op-amp with a dc-gain of 23.6 dB. The input signal to this amplifier is;Vin(t) = (0.18)∙cos(2π(
Vsevolod [243]

Answer:

Output voltage equation is V_{out} (t) = 2.72 \cos (2\pi (57000)t +18.3)

Explanation:

Given:

dc gain A = 23.6 dB

Input signal V_{in} (t) = 0.18 \cos (2\pi (57000)t +18.3)

Now convert gain,

A = 10^{\frac{23.6}{20} } = 15.13

DC gain at frequency f = 0 is given by,

  A = \frac{V_{out} }{V_{in} }

V_{out} =AV_{in}

V_{out} = 15.13 \times   0.18 \cos (2\pi (57000)t +18.3)

At zero frequency above equation is written as,

V_{out} = 2.72 \times \cos 18.3

V_{out} = 2.72

Now we write output voltage as input voltage,

V_{out} (t) = 2.72 \cos (2\pi (57000)t +18.3)

Therefore, output voltage equation is V_{out} (t) = 2.72 \cos (2\pi (57000)t +18.3)

7 0
3 years ago
Write a python program to get the following output. 1-----99 2-----98 3-----97 . . . . . . 98-----2 99-----1
Zanzabum

Answer:

i dont know th answer can u help ?

Explanation:

8 0
3 years ago
Two kg of N2 at 450 K, 7 bar is contained in a rigid tank connected by a valve to another rigid tank holding 1 kg of O2 at 300 K
11111nata11111 [884]

Answer:WHo knows.Explanation:

7 0
3 years ago
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