Discuss the prevalence of the COVID-19 pandemic in South Africa (Economy of SA).
Explain what is COVID-19 pandemic is?
Write the following sources in the form of footnotes using the Chicago style(simple format)
Michael Postan Fact and Relevance: Essays on Historical Method Cambridge 1971 Cambridge University Press pages 15-17
Michael Postan Fact and Relevance: Essays on Historical Method Cambridge 1971 Cambridge University Press pages 21
6. Air in a conditioned space has 26 oC db and 70% RH, find the wet bulb depression. PLEASE EXPLAIN THE DETAILED ANSWER/SOLTION.
Answer:
A. 6.00 oC B. 15.34 oC C. 7.20 oC D. 17.80 oC
Discuss the strategies that South African firms can implement to manage the COVID-19
pandemic.
List the potential errors that could have affected the results of this heart rate and blood pressure practical and how you would reduce them if the same practical was repeated? ( 100 words please)
Explain the impact of COVID-19 in the South African workplace.
6. A throttling calorimeter is connected to the superheated steam line supplying steam to the auxiliary feed
pump on a ship. The line pressure measures 2.5 Mpa. The calorimeter pressure is 110 kpa and 150oC.
Determine the entropy of the steam line. PLEASE EXPALIN THE DETAILED ANSWER/SOLUTION.
ANSWER: a. 6.8 KJ/kg-oK c. 6.6 KJ/kg-oK
b. 6.2 KJ/kg-oK d. 7.5KJ/kg-oK
Explain the prevalence of COVID-19 in South Africa today.
2. A certain radioactive substance has a half-life of 38 hours. Find how long it takes for 90% of
the radioactivity to be dissipated.