Physics, 03.11.2020 17:20, maggiestevens5321
5.54 Two kilograms of air within a piston–cylinder assembly WP execute a Carnot power cycle with maximum and minimum temper atures of 750 K and 300 K, respectively. The heat transfer to the air during the isothermal expansion is 60 kJ. At the end of the isothermal expansion the volume is 0.4 m3. Assuming the ideal gas model for the air, determine a. the thermal efficienc b. the pressure and volume at the beginning of the isothermal expansion, in kPa and m3, respectively. c. the work and heat transfer for each of the four processes, in kJ. d. Sketch the cycle on p–V coordinates.
Answers: 3
Physics, 22.06.2019 01:30, ladyty2109
Kate is working on a project in her tech education class. she plans to assemble a fan motor. which form of energy does the motor convert most of its electric energy into? a. light energy b. motion energy c. sound energy d. thermal energy
Answers: 1
Physics, 22.06.2019 12:10, aedelfrance9250
Aspring has a natural length of 8 m. if a 12-n force is required to keep it stretched to a length of 10 m, how much work w is required to stretch it from 8 m to 16 m? (round your answer to two decimal places.)
Answers: 1
Physics, 22.06.2019 20:00, teescub9738
In an old-fashioned amusement park ride, passengers stand inside a 3.0-m-tall, 5.0-m-diameter hollow steel cylinder with their backs against the wall. the cylinder begins to rotate about a vertical axis. then the floor on which the passengers are standing suddenly drops away! if all goes well, the passengers will “stick” to the wall and not slide. clothing has a static coefficient of friction against steel in the range 0.60 to 1.0 and a kinetic coefficient in the range 0.40 to 0.70. part a what is the minimum rotational frequency, in rpm, for which the ride is safe? express your answer using two significant figures. f f = rpm
Answers: 1
5.54 Two kilograms of air within a piston–cylinder assembly WP execute a Carnot power cycle with max...
Mathematics, 18.06.2021 21:00
English, 18.06.2021 21:00
Biology, 18.06.2021 21:00
Mathematics, 18.06.2021 21:00
World Languages, 18.06.2021 21:00
Mathematics, 18.06.2021 21:00
Biology, 18.06.2021 21:00
Mathematics, 18.06.2021 21:00