If a server takes precisely 15 seconds to serve a customer and customers arrive exactly every 20 seconds, what is the average waiting time?

What different between 'flow analysis using control volume method' and 'flow analysis using differential method'?

Befor operating any plant, machinery or equipment, you should

The air standard efficiency ofan Otto cycle compared to diesel cycle for thie given compression ratio is: (a) same (b) less (c) more () more (d) unpredictable (d) e) more or less depending on power rating

Suppose that the material to be used in a fuse melts when the current density rises to 459 A/cm2. What diameter of cylindrical wire should be used to limit the current to 0.53 A?

How many 1/8ths are in an inch?

Where might you find recommendation engines at work?

Just getting to your class is enough for showing up. A) True B) False

A completely reversible heat pump produces heat at a rate of 100 kW to warm a house maintained at 25℃. The exterior air, which is at 0℃, serves as the source.

A closed system undergoes a process in which work is done on the system and the heat transfer Q occurs only at temperature Tb. For each case, determine whether the entropy change of the system is positive, negative, zero, or indeterminate.

A scientist who is evaluating an ancient human skeleton for signs of vitamin and nutrient deficiency is conducting: