North South University

Recently you had an appointment for passport form submission in Uttara. In the passport office’s biometric acquiring chamber, only 4 people are allowed in a queue while maintaining a three feet distance between them. There is a yellow line in front of the chamber to mark it as a no crossing. If more than 2 people cross the line at the same time an alarm goes off. Each awaiting applicant has one digital token with a sensor to detect their presence in the chamber. 
Your task is to: 
Outline the necessary steps in correct sequence of the standard procedure to design a digital system for alarm circuit and design the system. Also show the outlined steps, which will trigger the alarm and implement the system with CMOS logic. 
The human audible ranges from 20Hz – 20kHz. However, any sound below 250Hz is disturbingly low pitched and any sound above 4500Hz is disturbingly high pitched. Design the alarm timer circuit with a frequency of P5 Hz and a duty cycle of Q% [where P= L+O+G+I+C and Q = 100 – P]. However, if P5 Hz is not within soothing is hearing limits, take frequency, f =400Hz. Choose the capacitor value from the given list based on the suitability of your requirements. (C = 50uF/250uF/470uF).
State the limitations of this developed system and explain the effect of increasing the frequency above 4500Hz.

In a power plant, steam enters the H.P turbine at 12 MPa and 600°C and condensed at 10 kPa. If the quality of steam at the exit of the L.P turbine is limited to 92%, calculate the reheating pressure and the thermal efficiency of the reheat Rankine cycle.

Provide details solution 

8.18) In a power plant, steam enters the H.P turbine at 12 MPa and 600°C and condensed at 10 kPa. If the quality of steam at the exit of the L.P turbine is limited to 92%, calculate the reheating pressure and the thermal efficiency of the reheat Rankine cycle.
 

8.19) In a power plant, steam enters the H.P turbine at 15 MPa and 700°C and condensed at 12 kPa. If the reheat pressure and temperature are 4 MPa and 500°C respectively, find the thermal efficiency of the reheat-Rankine cycle. Ignore the pump work and consider the steam leaving the HP turbine as dry saturated.
Ans. 47.39%

Note: I need the step b setp details calculation of both questions. 

Report about ratio analysis between 2 companies

ratio analysis between 2 companies?

4-2 DEBT RATIO Bartley Barstools has an equity-multiplier of 24, and its assets are financed with some combination of long-term debt and common equity. What is its debt ratio?