A closed system having a mass of 50 kg hasan initial velocity of 10 m/s. Subsequently itsvelocity increased to 30 m/s and its elevationalso rises by 40 m. During this process thesystem receives 30000 J of heat and 450O J ofwork. If the system delivers 0.002 kWh ofelectrical energy, determine the change inintermal energy of the system.

Answered: Image /qna-images/answer/0a8eda61-c9fa-4254-a5af-f0159fd22221.jpg

A closed system having a mass of 50 kg has an initial velocity of 10 m/s. Subsequently its velocity increased to 30 m/s and fts elevation also rises by 40 m. During this proces the system receives 30000 J of heat and 4500 J of work. If the system delivers 0.002 kWh of. elactrical energy, determine the change in internal energy of the system.

A closed system having a mass of 50 kg has an initial velocity of 10 m/s. Subsequently its velocity increased to 30 m/s and fts elevation also rises by 40 m. During this proces the system receives 30000 J of heat and 4500 J of work. If the system delivers 0.002 kWh of. elactrical energy, determine the change in internal energy of the system.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Similar questions

1 kg of ice from a freezer at -10◦C is placed in a bucket in the garden where the temperature is 20◦C. The temperature difference between the garden and the ice/water system is used to operate an engine. Calculate the maximum amount of work that can be done by this engine and its overall efficiency.
A spring whose spring constant is 200 lbf/in has an initial force of 100 lbf acting on it. Determine the work, in Btu, required to compress it another 1 in
An amount of gas inside an insulated vessel contained 45000J of internal energy. The gas expands until the internal energy reduced to 23kJ. Determined the work produced by the gas
The mass of a baseball is 0.833 lb. Determine its kinetic energy relative to home plate of a 95.58 mile per hour fastball, in BTU.
Water from deep well 20 m below the ground is pump to an overhead tank 50 m above ground. Determine the change of potential energy in J/kg. Ans: 686.5 J/kg
A closed system of constant volume experiences a temperature rise of 20 ⁰C when a certainprocess occurs. The heat transferred in the process is 18 kJ. The specific heat at constantvolume for the pure substance is 1.2 kJkg-1K-1, and the system contains 2 kg of this substance.Determine the change in internal energy and the work done.
A bag of wheat weight 300 kg .To what height should it be raised so that potential energy is 9600 J? Take g 9.8 m/s?
Nitrogen with a mass of 3.82 kg expands at constant pressure. The initial pressure and temperature in the piston-cylinder system are 172 kPa and 23.4°C, respectively. Because of the heat transfer, the system reached a final temperature of 206.4°C. Compute for the work in kl. Answer in 3 decimal places.
A gas contained in a vertical cylindrical tank has a volume of 11.12 m3. The gas receives a paddle work of 7.5W for 1hour. If the density of the gas at the initial state is 1.5 kg/m3, determine the specific heat gain or loss if the specific internal energy of the gas increases by 16.2kJ/kg.
Imagine a car traveling at a constant speed along a road. Determine the temperature and work interactions and direction by taking the following as a system: (a) automobile radiator, (b) automobile engine, (c) automobile tires, (d) road, (e) air surrounding the car.