Lv 2559 points

# M_Foge

• ### U-tube Manometer?

I want to determine the density of oil at different temperatures below 100 deg. Celsius.

using water as a gage fluid, is it recommendable to use an open-type U-tube manometer?

if not.. Please suggest a quite descent experiment I could do using a U-tube manometer.  Thanks!..

• ### Question on quantum photon energy?

I have an example,

In a microwave oven that producing 2.54Ghz @ 700 W of power.

If we calculate the photon energy E = hv

E = (6.62 x 10^-34) * (2.54 x 10^ 9)

E = 1 . 68 x 10^ -24 J

If we divide the power 700 W to the photon energy,

700 / E

We'll have a value of

= 4 . 159 x 10 ^ 26

Question 1 : is this the total number of microwave photons?

Question 2 : is it also the total number of electrons? If i am thinking (please correct me if Im wrong) that each photon is produced by an electron inside the magnetron? With a cyclotron frequency same as the produced microwave frequency (2.54 Ghz)?..

In-depth explanations are more appreciated.. thank you..

• ### QUESTION ABOUT INDUSTRIAL AUTOMATION?

Are there any other programmable controller platforms that are.used in industrial automation besides PLC?..

• ### How can I connect to other people?

I am starting a business, and I believe that I can help people out of this.

And the problem is im not good in communicating people, Im a good listener, but to start a conversation is where Im not really good at.

What are the things I should start doing to solve this?

What kind of people should I ask about how I should sove this?

• ### HIGH VOLTAGE CAPACITOR?

1. Can I use it in direct current application?

2. What does tjis electrical diagram means, or what does it mean in using the capacitor.

I cant upload the photo, ill just describe it..

A resistor with 10 mega ohm connected with a capacitor in parallel

The capacitor came from a properly functioning microwave oven..

• ### APPLICATIONS OF GUNN DIODE?

why does gunn diode or IMPATT is not used in microwave oven?..

I need sciebtific and detailed explanations.. :)

thank you very much..

• ### Mechanical Engineering Teaching Profession...?

Im a mechanical engineering graduate and a licensed one.. Here in the Philippines and abroad, do you think teaching mechanical engineering field is a good profession and career?.. Is it a fulll time job? because some people say I must do it in part time..

Can You give me please a complete example of ADC/DAC application that is controlled from a PC?..

if the example is very simple, just like controlling a motor on/off, that would be the best..

I really need it.. thanks..

I want to learn how to make an Analog-to-digital and Digital-to-analog converter and ADC/DAC interface and I want to use it on robotics/scientific applications. Can you give me a list of best books, tutorials or any learning modules were I can learn it easily?.. or if it is a bit complicated, I hope its a complete one..

I need this very badly... thanks!..

• ### In Command Prompt or MS DOS?

How can I see the directory on the folders inside the disk (let say Disk C) if the have spaces in their names?

example.. Program Files

so I would write :

DIR C:\Program Files

i already done that, but the computer says that File not found. But when I've tried it with folders that their names doesn't contain spaces, it works.. What will I do?

thanks a lot.. =)

3 AnswersProgramming & Design6 years ago

Im a mechanical engineering graduate. Can you please give me a list of best businesses that I can build that is related to mechanical engineering discipline?.. If you have more details to clarify, I would like to read it..

Thank you..

• ### Can I build a robot that can be controlled from the computer?

How can I make a simple CONTROL SYSTEM that a robot can be controlled from a computer?

Can you give me a DETAILED solution? thanks.

10 points for the most informative answer.. thank you..

• ### DIRECT CURRENT QUESTION...?

Example.. I have several voltage sources, such as batteries.. They have identical potential difference, let say, 3V (of course, they are not precisely identical).. How can I connect them without increasing its total output voltage? Let say, I want to maintain 3V output voltage of the connected batteries and I just intended to increase the total output energy capacity..

How can I connect them? I've already asked this question but somebody said that the higher voltage battery can drive that lower voltage one and that's a bit dangerous..

What should I do? any suggestions please?.. if you can make your answer a bit scientific approach, that would be great.. thanks..

• ### FUNDAMENTAL FORCES..?

Is there a physical or other connections between strong nuclear force and weak nuclear force?

• ### Electricity... DIRECT CURRENT QUESTION...?

Example.. I have several voltage sources, such as batteries.. They have identical potential difference, let say, 3V.. How can I connect them without increasing its total output voltage? Let say, I want to maintain 3V output voltage of the connected batteries and I just intended to increase the total output energy capacity..

How can I connect them? Because I am not sure if it's ok or safe it I connect them in parallel... If your answers would be have scientific precision w/ explanation, that would be great.. thank you.. =)

I'm a mechanical engineer. I love physics and I also want to be a physicist. I am confused on what to take on my masters degree, physics or engineering (I want to focus on energy production and I've chosen MS Energy Engineering)? Do you think I can still contribute on physics even though I'm an engineer and just study physics myself? or I should pursue the MS Physics course even though it would take a long time? If you have any suggestions and other commentaries, I am happy to read it.. thank you.. I wish you could help me..