The probability that a voter chosen at random is in the 18 to 20 years old age range is ___. (Round to three decimal places as​ needed.)

The probability is ____.

Probabilities of Death The US Social Security
Administration collects information on the
life expectancy and death rates of the population.
Table P.6 gives the number of US men out of
100,000 born alive who will survive to a given age,
based on 2011 mortality rates.6
For example, 50,344 of 100,000 US males live to
their 80th birthday.

(a) What is the probability that a man lives to
age 60?
(b) What is the probability that a man dies before
age 70?
(c) What is the probability that a man dies at age 90
(after his 90th and before his 91st birthday)?
(d) If a man lives until his 90th birthday, what is the
probability that he will die at the age of 90?
(e) If a man lives until his 80th birthday, what is the
probability that he will die at the age of 90?
(f) What is the probability that a man dies between
the ages of 60 and 89?
(g) If a man lives until his 60th birthday, what is the
probability that he lives to be at least 90 years
old?
Table P.6 Life Table for US males, 2011
Age 60 70 80 90 91
Number of lives 85,995 73,548 50,344 17,429 14,493

A perfect gas occupying a volume of 200 dm3 at 2 atm is isothermally compressed at 500K with a piston actuated at external pressure, Pext, constant. Q3a) What will be the smallest value of Pext for a final volume of 50 dm3? Q3b) Calculate the work, w, done with this value of Pext. Is this a reversible or irreversible work? Q3c) This same gas is then compressed isothermally and reversibly at 500K V1 = 200 dm3 at V2 = 50 dm3. Calculate for this transformation the ΔU, wrev and qrev.

Consider two containers A and B where A is a rigid container and B is a container with a massless, frictionless piston that maintains constant pressure. NH₃ (g) is injected into both containers and allowed to come to equilibrium. At equilibrium, 2 atm of Argon gas is injected into each container. Explain any changes (up, down or no change) to the equilibrium concentrations of NH₃ , N₂ and H₂ ?

a) do the partial pressures of container A change or remain the same?

b) what happens to the volume in container B?

Evaluate the challenges and opportunities in the aircraft manufacturing industry following World War II as commercial and military aircraft evolved from piston-engine to high-performance,

jet aircraft. In your analysis, consider factors that influenced the aircraft manufacturing industry with respect to designs, performance, materials, development, and production of new, high-

performance jet aircraft. Development of Alternative Actions (2 advantages and 2 disadvantages)

Format

-Two to three pages text

-Double-spaced lines

A piston-cylinder heat engine has five kilograms of air as the working fluid. Analyze this engine as a Carnot engine and determine the work of expansion and the amount of heat rejected in KJ assuming constant specific heat at 300k. During the heat rejection, the temperature is 300?. There is a temperature difference of 600 degrees in the engine. At the beginning of the heat rejection process, the pressure is .2MPa and during heat addition the volume doubles. Draw the P-v diagram and T-s diagram for the cycle.

Consider 10 moles of an ideal polyatomic gas in a container with a frictionless piston. The initial pressure is 105 kPascals and initial volume is .3 m³.   The gas is isobarically compressed to .1 m³. Determine the resulting change in entropy of the environment. (assume the temperature of the environment is a constant 28 Celsius)

Group of answer choices

a) +453.6 J/K

b) +426.4 J/K

c) +313.8 J/K

d) +349.2 J/K

e) +376.4 J/K

PART A

A cylinder, with a piston pressing down with a constant pressure, is filled with 1.90 moles of a gas (n1), and its volume is 40.0 L (V1). If 0.600 mole of gas leak out, and the pressure and temperature remain the same, what is the final volume of the gas inside the cylinder? Express your answer with the appropriate units.

PART B

A sample of gas in a cylinder as in the example in Part A has an initial volume of 52.0 L , and you have determined that it contains 1.40 moles of gas. The next day you notice that some of the gas has leaked out. The pressure and temperature remain the same, but the volume has changed to 13.0 L . How many moles of gas (n2) remain in the cylinder? Express your answer with the appropriate units.

An engine that operates by means of an ideal diatomic ideal gas in a piston with 2.70 moles of gas. The gas starts at point A with 3x103 Pa of pressure and 2.5x10-2 m3. To get from B from A, it is expanded by an isobaric process to double the initial volume. From B to C it expands adiabatically until it reaches three times the volume in A. From C to D the pressure decreases without changing the volume and from D to A it is an isothermal compression. a) Draw the PV diagram of the process and determine the pressure and volume at each vertex. Calculate: b) full cycle work. C) The heat transferred in each process. D) The real efficiency and efficiency of carnot. D) The change of entropy in each process.

Forgive me, I'm a little bit vague on the detail.