Question Operating system solve Asap A Biryani restaurant employs three people A, B and C to make the dish, they share 1 chopping board, 2 knives and 1 bowl. A needs 1 knife and 1 bowl, B needs 1 knife and 1 chopping board, C needs 1 knife, 1 chopping board and 1 bowl. At certain point in time, A is using 1 bowl, B is not using anything, C is using 1 knife and 1 chopping board. (i) Find the possible safe sequence state. [6 marks] (ii) Can the request for 1 chopping board by B can be granted? Justify your answer. [4 marks]

Task: Write a program that edits a text file to display each complete sentence with a period at the end in a separate line. Your program should work as follows: Ask the user to input file name containing sentences separated with a period (sentences may be in single line as a paragraph contains multiple sentences). Create a temporary file, copy from the Task: Write a program that edits a text file to display each complete sentence with a period at the end in a separate line. Your program should work as follows: Ask the user to input file name containing sentences separated with a period (sentences may be in single line as a paragraph contains multiple sentences). Create a temporary file, copy from the source file to a temporary file and perform the required operation (write all sentences at a different line without a period). Copy the contents of the temporary file back into the source file. Use a method (or methods) in the class File to remove the temporary file. You will also want to use the class File for other things in your program. The temporary file should have a name that is different from all existing files so that the existing files are not affected (except for the file being edited). Your program will ask the user for the name of the file to be edited. However, it will not ask the user for the name of the temporary file but will instead generate the name within the program. You can generate the name any way that is clear and efficient. One possible way to generate the temporary file is to start with an unlikely name, such as "Temp1", and to append a digit, such as '1', until a name is found that does not name an existing file.

17.7 Bedeivable: A Sive Problem Nagano International has 420 accounts receivable in its subsidiary ledger. All accounts are due in 30 days. On December 31, an aging schedule was prepared. The results are summarized below: Not Yet Due 1-30 Days Past Due 31-60 Days Past Due 61-90 Days Past Due Over 90 Days Past Due Total Customer (418 names) Subtotals $863,125 $458,975 $236,700 $108,350 $22.500 $36.600 Two accounts receivable were accidentally omitted from this schedule. The following data are available regarding these accounts: 1. J. Ardis owes $10,625 from two invoices: invoice no. 218, dated September 14, in the amount of $7.450; and invoice no. 568, dated November 9, in the amount of $3.175. 2. N. Selstad owes 59,400 from two invoices: invoice no. 574, dated November 19, in the amount of $3,375; and invoice no. 641, dated December 5, in the amount of 6,025. Instructions a. Complete the aging schedule as of December 31 by adding to the column subtotals an aging of the accounts of Ardis and Selstad. b. Prepare a schedule to compute the estimated portion of each age group that will prove uncol- lectible and the required balance in the Allowance for Doubtful Accounts. Arrange your sched ule in the format illustrated on page 292. The following percentages of each age group are es- timated to be uncollectible: Not yet due, 1%; 1-30 days, 4%; 31-60 days, 10%; 61-90 days, 30%, over 90 days, 50%. c. Prepare the journal entry to bring the Allowance for Doubtful Accounts up to its required bal ance at December 31. Prior to making this adjustment, the account has a credit balance of $34,500. d. Show how accounts receivabıle would appear in the company's balance sheet at Decem ber 31 e. On January 7 of the following year, the credit manager of Nagano International learns that the $10,625 account receivable from J. Ardis is uncollectible because Ardis has declared bank ruptcy. Prepare the journal entry to write off this account.

A recent study reported that Americans spend an average of 270 minutes per day watching TV. Assume the distribution of minutes per day watching TV follows a normal distribution with a standard deviation of 23 minutes. a. What percent of the population watch more than 300 minutes per day? (Round your intermediate calculations and final answer to 2 decimal places.) b. What percent of the population watch more than 220 minutes per day? (Round your intermediate calculations and final answer to 2 decimal places.) c. What percent of the population watch between 220 hours and 300 hours? (Round your intermediate calculations and final answer to 2 decimal places.) d. Let’s define a “binge watcher” as someone in the upper 5% of the distribution of minutes watching TV. How many minutes does a “binge watcher” spend per day watching TV? (Round your intermediate calculations and final answer to 1 decimal place.)

Problem 3 (30 points) Consider the unity feedback system given below. a) Draw the root locus showing open-loop poles and zeros, and asymptotes. (20 pts) OUF b) Determine if a test point so = -4+j is on the root locus, where j² = -1. Justify your answer. (10 pts) R(S)+ Hint. The equations of the asymptotes of the Root Locus are given by: #aymptotes = #finite Problem 3 (30 points) Consider the unity feedback system given below. a) Draw the root locus showing open-loop poles and zeros, and asymptotes. (20 pts) OUF b) Determine if a test point so = -4+j is on the root locus, where j² = -1. Justify your answer. (10 pts) R(S)+ Hint. The equations of the asymptotes of the Root Locus are given by: #aymptotes = #finite poles - #finite zeros, - K(s+1) (s+2)(s+3)(s+4) Efinite poles-E finite zeros #aymptotes 0a= (2 #ay

Water at 20°C flows through a horizontal 6.0 mm diameter tube where two pressure tappings at a distance 12.0 m apart are attached. Water density and dynamic viscosity at 20 °C are 998 kg/m and 0.001002 Pa.s, respectively. What is the maximum head loss (to 2 decimal places) allowed if the flow is to be laminar (i.e., Re = 2000.0)? HL=

Funding your retirement You plan to retire in exactly 20 years. Your goal is to create a fund that will allow you to receive \( \$ 20,000 \) at the end of each year for the 30 years between retirement and death (a psychic told you that you would die exactly 30 years after you retire). You know that you will be able to earn \( 11 \% \) per year during the 30 -year retirement period. a. How large a fund will you need when you retire in 20 years to provide the 30 -year, \$20,000 retirement annuity? b. How much will you need today as a single amount to provide the fund calculated in part a if you earn only \( 9 \% \) per year during the 20 years preceding retirement? c. What effect would an increase in the rate you can earn both during and prior to retirement have on the values found in parts \( \mathbf{a} \) and \( \mathbf{b} \) ? Explain. d. Now assume that you will earn \( 10 \% \) from now through the end of your retirement. You want to make 20 end-of-year deposits into your retirement account that will fund the 30 -year stream of \( \$ 20,000 \) annual annuity payments. How large do your annual deposits have to be?