Boozer

I am currently TDY in Groton, CT. My family and PDS is in Charleston, SC. My next PDS is in Bethesda, MD. To move myself and my family to Bethesda, I will need to travel to Charleston to collect my HHG and then travel to Bethesda.

The guy working my file at PSD told me the Navy wouldn't pay for me to go back to SC and then to MD. I have trouble believing him for three reasons:

1. He works at PSD.

2. He is new at PSD.

3. He's given me bad gouge in the past.

Could anyone with experience in the matter clarify this for me? If at all possible, please cite any references you have. Real life experience does count as a reference! Thank you!!

The design and operating parameters of a four-cylinder 1.6-liter displaced volume engine are to be optimized for each fuel over the engine's operating load and speed range. You may assume that the gross indicated fuel conversion efficiency and imep at any operating condition are given by 0.8 times the fuel-air cycle efficiency at those conditions. Also, assume that the compression ratio is 9.

a) At part-throttle operation (intake pressure of 0.5 atm and speed of 2500 rpm) estimate the gross indicated fuel conversion efficiency and specific fuel consumption. The engine-fuel combination operates at the lean limit given.

Fuel Properties:

Gasoline (CH2)n

Research Octane Number 95

φ Lean Operating Limit 0.9

Stoichiometric Air/Fuel 14.9

Heating Value 44 MJ/kg

Volumetric Efficiency 0.85

I'm having trouble getting started. I'm not really sure what is meant by fuel-air cycle efficiency.

I'm studying for a test, and I'm having a bit of trouble with a question.

Page 167 in Bartle and Sherbert's Introduction to Real Analysis, question number 7.

Suppose that f: R -> R is differentiable at c and that f (c) = 0. Show that g (x):= | f (x) | is differentiable at c if and only if f ' (c) = 0.

Thanks. 10 points to the correct response.

Tarzan, who has a mass of 60.0 kg, runs toward a lake at a speed of 5.00 m/s. He grabs a massless rope of length 10.0 m and begins to swing out over the lake, which is 20.0 m below. Taking t = 0 to be when he grabs the rope, at what time should he release the rope so he travels the greatest distance before hitting the lake? Assume the rope hangs just even with the edge of the cliff.

Bonus Question: What angle with the vertical does the rope make at this time?

I made this question up, and I'm pretty sure it has all of the needed information to solve it.