Examples - 3.1 To illustrate the proper use of units in the calculation of such terms, consider a system having a mass of 1 kg whose velocity increases from 15 m/s to 30 m/s while its elevation decreases by 10 m at a location where g 9.7 m/s. What is the kinetic %3D energy and potential energy in SI and AE systems?

Examples - 3.1 To illustrate the proper use of units in the calculation of such terms, consider a system having a mass of 1 kg whose velocity increases from 15 m/s to 30 m/s while its elevation decreases by 10 m at a location where g 9.7 m/s. What is the kinetic %3D energy and potential energy in SI and AE systems?

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

For a vibrating system, m 20 kg,k=4,000N/m and c=70 N.s/m . A harmonic force of amplitude 200 N and frequency 5 Hz acts on mass. If the initial mass displacement and velocity are 0.7 cm and 8 m/s, respectively, determine the complete solution that represents the movement of the mass.
In medical literatures, local blood perfusion rate is typically presented as xx ml/(min 100g tissue), in another word, it represents xx ml of blood supplied to a tissue mass of 100 g per minute to satisfy its nutritional needs. As we learned from the course lectures, the local blood perfusion rate appearing in the Pennes bioheat equation is in a unit of 1/s, or can be interpreted as xx ml of blood supplied to a tissue volume of 1 ml per second. The following lists the blood perfusion rates in various organs or structures in a human body from medical textbooks: brain (50 ml/(min 100g tissue)), kidney (35 ml/(min 100g tissue)), and muscle at rest (3 ml/(min 100g tissue)). Please convert the above local blood perfusion rates into values with the unit of 1/s, therefore, they can be used in the Pennes bioheat equation. The tissue density in a human body is 1050 kg/m³.
For the statements in them, put T if they are true and F if they are false. a) ( ) When a certain mass of ice melts at 0ºC, its density decreases. In this case, due to the first law of thermodynamics, the variation of the internal energy will be smaller than the heat involved in the process.b) ( ) During a process involving an ideal gas, you know the initial iternal energy and the final internal energy during the process. So you can know if the energy variation internal gas during the process is due to the work performed or the heat transferred.c) ( ) For a temperature increase of ∆T, a certain amount of ideal gas requires 30J when heated to constant volume and 50 J when heated to constant pressure. In thisIn this case, it is correct to state that the work performed by the gas in the second situation is 20 J.d) ( ) The higher the temperature of an ideal gas in a fixed volume V, the lower the free middle path of its molecules.e) ( ) When a system loses heat and performs work during a…
(1) The list consisting only of intensive properties is a) Volume, temperature, pressure. (c) Specific heat, temperature, density. (b) Specific volume, mass, volume. (d) Mass, temperature, pressure. (2) Which one of the following statements is incorrect for the first law if kinetic and potential energy changes are negligible? a) Heat transfer equals internal energy change for a process. (b) Heat transfer and work have the same magnitude when the internal energy remains constant. (c) The total energy input must equal the total work output for an engine operating on a cycle. (d) The internal energy change plus the work must equal zero for an adiabatic process. (3) A gas contained within a piston-cylinder assembly undergoes Process 1-2-3 shown on the P-V diagram below. Process 1-2-3 is: (a) Constant-volume expansion followed by constant-pressure compression. lege of E Departme (b) Constant-pressure compression followed by constant-volume expansion. c) Constant-volume compression followed…
Fluid Mechanics
The study of incompressible fluid under motion is called a. Aerodynamics O b. Aerostatics c. Hydrodynamics O d. Hydrostatics Unit of Energy in basic quantities O a. kg m3/s3 b. Nm C. Joule d. Kg m2/s2
thermodynamics 1
The following data are given for a certain rocket unit: Thrust, 8000 N Propellant weight flow rate, 36 N/sec Speed of rocket, 800 m/s internal efficiency32%combustion efficiency 97 % Determine (a) the effective velocity; (b) total kinetic energy per second (c) calorific value of propellant (d) the propulsive efficiency (e) the overall efficiency (f) the specific impulse (g) the specific propellant consumption ????? =1/3 ?(?^2) hV cylinder = ?(?^2) h V frustrum = 1/3 ?ℎ(?^2 +?^2 +? ×?)
Given: Four masses m, m2, ms, and mą are 300 kg, 400 kg. 320 kg, and 340 kg respectively. The corresponding radii of rotation are 0.3 m, 0.22 m, 0.35 m, and 0.4 m respectively and the angle of rotation between successive masses are 30°, 85", 145°. m, = 340 kg 0.4 m m, = 300 kg 0.3 m 80 180° 30° 65° 0.22 m 0.35 m m, = 400 kg m3 = 320 kg Find the magnitude of the balance mass required, if its radius of rotation is 0.3 m Note: Moment of Centrifugal Force (Fe m(r).
HW4 EX1: An automobile moving over a rough road (Fig. 1.64) can be modeled considering (a) weight of the car body, passengers, seats, front wheels, and rear wheels; (b) elasticity of tires (suspension), main springs, and seats; and (c) damping of the seats, shock absorbers, and tires. Develop three mathematical models of the system using a gradual refinement in the modeling process. FIGURE 1.64 An automobile moving on a rough road. EX2 1.5* The consequences of a head-on collision of two automobiles can be studied by considering the impact of the automobile on a barrier, as shown in Fig. 1.65. Construct a mathematical model by considering the masses of the automobile body, engine, transmission, and suspen- sion and the elasticity of the bumpers, radiator, sheet metal body, driveline, and engine mounts. FIGURE 1.65 An automobile colliding with a barrier.
Please help. Thank you
(b) A 1300-kg car travelled from 10 to 60 km/h on an uphill road with a vertical rise of 30 m. [Sebuah kereta seberat 1300 kg bergerak dari 10 ke 60 kmlj pada jalan mendaki dengan kenaikan menegak 30 m.] (i) List the appropriate energies involved with their formulas. [Senaraikan tenaga-tenaga yang terlibat beserta rumus-rumusnya.] (ii) Use your answer in Question 1(b)(i) to determine the total energy required to perform the work. Use gravitational force, g = 9.81 m/s?. [Gunakan jawapan anda pada Soalan 1(b)(i) untuk menentukan jumlah tenaga yang diperlukan untuk melaksanakan kerja ini. Gunakan daya graviti, g = 9.81 m/s'.]