The Downtown Parking Authority of Tampa, Florida, reported the following information for a sample of 229 customers on the number of hours cars are parked and the amount they are charged.

a-1. Convert the information on the number of hours parked to a probability distribution. (Round your answers to 3 decimal places.)

a-2. Is this a discrete or a continuous probability distribution? Discrete Continuous

b-1. Find the mean and the standard deviation of the number of hours parked. (Do not round the intermediate calculations. Round your final answers to 3 decimal places.)

b-2. How long is a typical customer parked? (Do not round the intermediate calculations. Round your final answer to 3 decimal places.)

Find the mean and the standard deviation of the amount charged. (Do not round the intermediate calculations. Round your final answers to 3 decimal places.)

Instructions:  Read the information below.  Provide a print screen of your work when using a software tool.

Adbul is the new maintenance supervisor at a local manufacturing plant. He is responsible for the maintenance of machinery for production line processes.  Abdul is interested in the level of machine failures. He would like to simulate the number of machine failures each month.  Using historical date, Abdul established the probability of failures during a month as follows:

Simulate Abdul’s monthly machine failures for a period of 3 years.  Replicate the failures 300 times.  Provide the following information:

A copy of the completed Excel spreadsheet                                       

The average number of failures per month for one replication         (1 mark)

The average number of failures per month for 300 replications       (1 mark)

Explain any difference(s) between the simulated average failures and the expected value of failures (long run value).                 

1. The molar heat capacity of silver is 25.35 J/mol⋅∘C. How much energy would it take to raise the temperature of 11.9 g of silver by 11.0 ∘C?

2.What is the specific heat of silver?

3.A piston has an external pressure of 8.00 atm. How much work has been done in joules if the cylinder goes from a volume of 0.170 liters to 0.540 liters?

4.Calculate the standard enthalpy change for the reaction

2A+B⇌2C+2D

Use the following data:

Fundamentals of Engineering Thermodynamics By Michael J.Moran 8th edition

5.83)Two kilograms of air within a piston-cylinder assembly execute a Carnot power cycle with maximum and minimum temperatures of 750 K and 300 K, respectively. The heat transfer to the air during the isothermal expansion is 60kJ. At the end of the isothermal expansion the volume is 0.4m^3. Assuming the ideal gas model for the air, determine

(a) the thermal efficiency (b) the pressure and volume at the beginning of the isothermal expansion, in KPa and m^3, respectively. (c) the work and heat transfer for each of the four processes, in kJ. (d) Sketch the cycle on P-V coordinates.

Please answer 3.

3. The airplane from Problem 2 has a maximum speed in steady level flight of 190 kts at 8,000 ft altitude. At this condition, the propeller efficiency is 0.75. Presuming a single reciprocating piston engine, and using the simple models for altitude lapse, compute the maximum shaft brake power in hp that the engine can produce at sea level.

2. Consider an airplane with a wing area of 240 ft2 , a span of 44 ft, an Oswald efficiency of 0.75, and a zero-lift drag coefficient of 240 counts (i.e., CD0=0.024). Presume that the airplane is operating at 8,000 ft altitude at a weight of 7,600 lbs.

viii. In the ___________________________________ system, lubricating oil is carried in separate tanks from where it is fed to the engine.

ix. The factors affecting combustion in CI engine are [ ] a) ignition quantity of fuel b) injection pressure of droplet size c) injection advance angle d) all of the mentioned x. The sudden turbulence of the air-fuel mixture as the piston approaches top dead centre is known as ______________________________________ phenomenon..

xi. Give the name of the combustion chamber which has shorter delay period? ____________________________.

xii. _____________ is also known as fuel rate extrapolation method. [ ] a) Morse test b) Motoring test c) Willan’s line method d) Retardation test

The following problem description applies also to the next two problems.

A piston-cylinder device contains 2 kg of a saturated liquid mixture at an initial state 1 with p₁= 100 kPa and x₁= 0.8. The water is heated at constant pressure until its final state 2 with volume V₂ = 1.947V₁.

Its initial volume, in m³/kg, is closer to:

A) 3.836

B) 1.294

C) 2.990

D) 2.345

E) 2.156

F) 2.711

G) 4.625

H)1.736

B) Its final temperature, in ^oC, is closer to:

C) The amount of heat supplied to the steam during the expansion process, in kJ, is closer to:

Consider a sample of ideal gas (0.50 moles) confined in a piston assembly that has diathermal walls (i.e. the walls allow heat exchange). The assembly is in contact with a thermal reservoir that holds the temperature constant at 300.K.

a) Suppose the ideal gas undergoes reversible isothermal compression from 25.0 L to 10.0 L. Calculate ΔS, ΔSsurrounding, and ΔStotal, where total = universe.

b) Suppose the ideal gas had instead been compressed isothermally by an external constant pressure from 25.0 L to 10.0 L. First determine the value of the minimum constant pressure for this process (in Pascals). Then, calculate ΔS, ΔSsurrounding, and ΔStotal.

A 100 kW, 8-cylinder R-22 compressor with 20 kW power operates at zero & 40 C evaporating & condensing temps. The compressor bore 0.07 m & stroke 0.06 m with clearance volume of 5% runs at 30 rev/sec.
Determine:
a. Draw the PH diagram indicating all enthalpy & sp. vol.
b. Volumetric efficiency
c. Suction volume, m3/s
d. Piston displacement, m3/s
e. Actual volumetric efficiency
f. Actual work of compressor, kJ/kg
g. Isentropic work of compression, kJ/kg
h. Compression or adiabatic efficiency

Professor Modyn owns a device called a pneumatic accumulator. This device maintains constant pressure of 217.00 psia as air enters by using a piston. Initially the device is filled with air at 76.74 °F and the volume is 0.317 ft3 (State 1). Air at 191.2 °F and 217.00 psia is fed into the accumulator until the volume triples and the temperature increases to 181.2 °F (State 2). Assume air is an ideal gas with a CP = 3.5R and MW = 29. No air leaves the system.

a) Find the amount of air added. (lbmol)

b) Calculate the work interaction term. (ft*lbf)

c) Calculate the heat interaction term. (ft*lbf)