Skip to main content
Greg Harrington's user avatar
Greg Harrington's user avatar
Greg Harrington's user avatar
Greg Harrington
  • Member for 13 years, 1 month
  • Last seen more than 8 years ago
11 votes
4 answers
11k views

Define Pressure at A point. Why is it a Scalar?

6 votes
3 answers
21k views

What type of substances allows the use of the Ideal Gas Law?

5 votes
2 answers
11k views

Which observer's time is proper time?

4 votes
0 answers
2k views

What's the meaning of a pressure coefficient in fluid mechanics?

4 votes
1 answer
917 views

Is a 5p to 5s transition possible in a multielectron atom?

4 votes
2 answers
7k views

RMS Free Path vs Mean Free Path

3 votes
5 answers
14k views

Why does a larger thermal conductivity provide a smaller temperature gradient?

3 votes
4 answers
5k views

Is it possible to know the exact values of momentum and velocity of a particle simultaneously?

3 votes
0 answers
2k views

How do I determine the Internal Energy of ammonia at a pressure in temperature when the steam table doesn't say it

3 votes
3 answers
7k views

How can I determine density of a gas only given temperature?

2 votes
2 answers
309 views

How would I go about solving this transient convection problem if the mean fluid temperature is constantly changing?

2 votes
6 answers
4k views

Confused about unit of kilowatt hours

2 votes
1 answer
2k views

How do I find average temperature given a temperature distribution?

2 votes
0 answers
5k views

When do I know if energy stored in an object is 0 or nonzero? (Heat transfer)

2 votes
1 answer
337 views

Is the pressure at the outer hole on a pitot static tube equal to atmospheric pressure?

2 votes
1 answer
1k views

Thermodynamic System: Windmill

2 votes
2 answers
3k views

Does power from a resistor perform work or heat transfer?

2 votes
1 answer
2k views

Free Body Diagram of Fluid Statics Problem [closed]

2 votes
3 answers
872 views

Shouldn't the sign of generated entropy always be positive?

2 votes
0 answers
203 views

How do I determine resistivity from electron defects of high purity gold?

2 votes
2 answers
2k views

Which temperature to evaluate fluid properties in pipe?

2 votes
0 answers
221 views

Is my method of calculating thermal conductivity of a metal wrong?

1 vote
1 answer
56 views

Help with change in specific volume with time in piston cylinder?

1 vote
1 answer
433 views

What does the absence of hydrodynamic entrance effects do to the momentum conservation Equation?

1 vote
1 answer
112 views

Can I apply symmetry to this boundary value problem (BVP)?

1 vote
0 answers
134 views

Derivation of cylindrical line heat source problem?

1 vote
0 answers
44 views

Vertical wall at 3 different temperatures - do the same natural convection coefficient correlations apply?

1 vote
0 answers
392 views

Internal pipe flow - Pressure Drop

1 vote
0 answers
191 views

How do I determine where the maximum air velocity around an object is?

1 vote
2 answers
7k views

Does the wave function need to be zero at the boundaries? [closed]