subject

Engineering, 22.04.2020 00:03 rustjallison9928

A spring-loaded piston–cylinder device is initially filled with 0.13 lbm of an R-134a liquid–vapor mixture whose temperature is 230°F and whose quality is 80 percent. The spring constant in the spring force relation F 5 kx is 37 lbf/in, and the piston diameter is 12 in. The R-134a undergoes a process that increases its volume by 50 percent. Calculate the final temperature and enthalpy of the R-134a

ansver

Answers: 1

Show answers

Another question on Engineering

question

Engineering, 03.07.2019 14:10

Amass of 1.5 kg of air at 120 kpa and 24°c is contained in a gas-tight, frictionless piston-cylinder device. the air is now compressed to a final pressure of 720 kpa. during the process, heat is transferred from the air such that the temperature inside the cylinder remains constant. calculate the boundary work input during this process.

Answers: 2

question

Engineering, 04.07.2019 18:10

Coiled springs ought to be very strong and stiff. si3n4 is a strong, stiff material. would you select this material for a spring? explain.

Answers: 2

question

Engineering, 04.07.2019 18:10

Ariver flows from north to south at 8 km/h. a boat is to cross this river from west to east at a speed of 20 km/h (speed of the boat with respect to the earth/ground). at what angle (in degrees) must the boat be pointed upstream such that it will proceed directly across the river (hint: find the speed of the boat with respect to water/river)? a 288 b. 21.8 c. 326 d. 30.2

Answers: 3

question

Engineering, 04.07.2019 18:10

An air compression refrigeration system is to have an air pressure of 100 psia in the brine tank and an allowable air temperature increase of 60°f for standard vapor compression cycle temperatures of 77 f entering the expansion cylinder and 14 f entering the compression cylinder, calculate the coefficient of performance a. 2.5 b 3.3 c. 4.0 d. 5.0

Answers: 3

You know the right answer?

A spring-loaded piston–cylinder device is initially filled with 0.13 lbm of an R-134a liquid–vapor m...

Questions

question

Social Studies, 01.10.2019 00:20

For much of the history of microbiology, scientists have studied cells suspended in liquid culture. recently, however, much more attention has been gi...

question

Social Studies, 01.10.2019 00:20

Which of these best illustrates the preconventional stage of moral development? a. everybody else is doing it, so it must be okay. b. what would my b...

question

Physics, 01.10.2019 00:20

Awatermelon is thrown down from a skyscraper with a speed of 7.0\,\dfrac{\text m}{\text s}7.0 s m 7, point, 0, space, start fraction, m, divided by,...

question

Social Studies, 01.10.2019 00:20

Catherine is at a crowded baseball game when she loses track of her son, nick. despite the loud cheering and noise of the crowd, she can pinpoint his...

question

English, 01.10.2019 00:20

Which statement is true? which statement is true? the object will continue to move to the right, slowing down but never coming to a complete stop. t...

question

Business, 01.10.2019 00:20

Atax attorney in the tax department of the law firm abc represents mr. x in a matter before the irs. another lawyer in the litigation department of ab...

question

Business, 01.10.2019 00:20

Jean-baptiste colbert was the minister of finance under king louis xiv of france. he famously observed, "the art of taxation consists in so plucking t...

question

Chemistry, 01.10.2019 00:20

You are asked to prepare 500 ml 0.250 m acetate buffer at ph 5.00 using only pure acetic acid ( mw=60.05 g/mol, pka=4.76), 3.00 m naoh, and water. ans...

question

Business, 01.10.2019 00:20

Two of the economy’s most important financial intermediaries are a. suppliers of funds and demanders of funds. b. banks and the bo...

question

Business, 01.10.2019 00:20

Define the following sample spaces. define notations as necessary. i. number of black hole mergers detected since ligo openedii. time (in days) until...

question

Social Studies, 01.10.2019 00:20

Frazier is out of milk and bread and needs to decide what is for dinner. he will be stopping at the grocery store on the way home. frazier will likely...

question

Physics, 01.10.2019 00:20

In a particle accelerator, a magnetic force keeps a lithium nucleus (mass 6.02 u) traveling in a circular path with a radius of 0.450 m. the lithium n...

question

Biology, 01.10.2019 00:20

Aresearcher is using a modified version of frap. she has devised a technique that allows her to label all the peripheral membrane proteins with a fluo...

question

Business, 01.10.2019 00:20

Acompany has a new concept for a lightweight electric scooter that can be easily folded and taken with you inside a building or on public transportati...

question

Business, 01.10.2019 00:20

Taveras corporation is currently operating at 50% of its available manufacturing capacity. it uses a job-order costing system with a plantwide predete...

question

Physics, 01.10.2019 00:20

The temperaturetdin degrees fahrenheit in terms of the celsius temperaturedis given by=td+9/5d+32.the temperaturecvin degrees celsius in terms of the...

question

Physics, 01.10.2019 00:20

An electret is similar to a magnet, but rather than being permanently magnetized, it has a permanent electric dipole moment. suppose a small electret...

question

Physics, 01.10.2019 00:20

Amotorcycle accelerates uniformly from rest at 7.9\,\dfrac{\text{m}}{\text{s}^2}7. 9 s 2 m 7, point, 9, space, start fraction, m, divided by, s, star...

question

Biology, 01.10.2019 00:20

You eat a chocolate bar to get you through a late-night studying session. your body quickly begins to break down the macromolecules in the candy, usin...

question

Social Studies, 01.10.2019 00:20

Aresearcher’s study uses a dataset of prisoner demographic characteristics. this dataset includes criminal history data that predates incarceration an...

More questions: Engineering Another questions

Questions on the website: 13722362