Suppose a manager of a certain mining company wants to determine the weekly food expenditure of the company’s employees. If there are 2,549 employees and the manager decided to use only 500 employees as a sample, who will be included in the sample? To help the manager make his decision, suggest a sampling technique to be used and state the whole process of selecting the participants.

An ideal otto cycle with air as the working fluid has a compression ratio of 8. the minimum and maximum temperatures in the cycle are 300 k and 1340 k. use constant specific heats at room temperature to determine (a) the amount of heat transferred to the air during the heat- addition kj/kg, (b) the thermal efficiency, and (c) the thermal efficiency of a carnot cycle ope limits. process, in rating between the same temperature

What is a monomer? how do they form a ploymer from the view point of chemical bonding?

Plan an experiment to measure the surface tension of a liquid similar to water. if necessary, review the ncfmf video surface tension for ideas. which method would be most suitable for use in an undergraduate laboratory? what experimental precision could be expected?