Forum Rules

Submitted by Jhun Vert on

We do not create any list of rules in here but notice that this site is highly moderated to maintain usability and integrity of the contents. Any comments and posts that do not add any value will be deleted without warning.

How we define which is to be retained and which one is to be deleted is at our sole discretion. If you think we deleted your post or comment by mistake, you may call our attention by using the "Contact us" link at the footer of this page.

Asking

Submitted by larry on

I just want to ask sir if it is possible to have a PDF copy of all the discussions/topics of this site? I just want to have one for me to have hard copy reference. :) please help me 3

Normal shock wave

Submitted by Roland Joseph … on

1. Consider a NSW with a downstream-upstream temperature ratio of 3.5 what is the mach number upstream and downstream of the shock? Show your solution.

2. The flow just upstream of a NSW is at SSLC and the mach number downstream is 0.6152 determine the pressure, temperature, density, velocity, and the total pressure and temperature. Show your solution

3. The mach number behind of a NSW is 0.4752
What is the mach number in front of the wave and the pressure ratio across the shock? Show your solution.

[HS Finance] Finance problems.

Submitted by Help_me_learn_Maths on

A. Find the period of deferral in each of the following deferred annuity problem.

1. Monthly payments of P1,000 for 9 years that will start 9 months from now

2. Monthly payments of P200 for 6 years that will start at the end of 10 years

3. Semi-annual payments of P12,700 for 5 years that will start 2 years from now

B. Solve the following problems completely.