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elena-s [515]
3 years ago
12

Consider a situation where water is used as the coolant in a heat exchanger for a micro-electromechanical device (MEM device). T

he characteristic velocity is estimated to be 10 microns/s, the length scale of the system is 100 microns, and the characteristic temperature difference of the problem is 10 K. Given what you know about the system, what assumptions can you make about the flow (namely: is it viscous (diffusion)dominated or inertia (convection) dominated, is it conduction dominated or convection dominated, are viscous dissipation effects important, etc.)
Engineering
1 answer:
Arturiano [62]3 years ago
5 0

Answer:

cool

Explanation:

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The solution is given in the attachments.

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Twenty sprint cyclists were randomly selected to be in a study designed to test the effectiveness of 4 weeks of creatine supplem
Leokris [45]

Answer:

True. This study utilized a placebo.

Explanation:

Firstly, let's define a placebo.

A placebo is something that seems to be a "real" medicine, however, it is not. It could be a pill, a liquid or other presentations of "Non- real" treatments. When using a placebo, we can affirm that they do not have in their composition an active substance that can improve health.

In this case, we have twenty cyclists randomly selected. Half of them received the truth supplement for four weeks, all the rest received a powdered with similar properties but not physical effects. It means: Half of the cyclist received a "placebo", that seems to be "real" medicine, nevertheless the "placebo" medicine will not show effects on health by its self.

Due to the above, we can conclude that this study utilized a placebo for half of the group. 

8 0
4 years ago
Complete the following sentence. The skills and content of several subject areas were combined to form a new field known as a me
Svetlanka [38]

Answer:

The answer is "discipline" , I was doing the same thing a minute ago. I hope this anwser is helpful! ^^

Explanation:

5 0
3 years ago
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A Capacitor is a circuit component that stores energy and can be charged when current flows through it. A current of 2A flows th
valkas [14]

Answer:

6uC

Explanation:

View Image

Derive an equation for charge(q) in term of current then solve:

q(t)=\int\limits^\tau_{\tau_0} {i(t)} \, d\tau+q_0

Use the equation above to solve for your net charge.

6 0
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stepladder [879]

Answer:

true

Explanation:

3 0
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