Physics, 18.12.2020 01:00, Aylin042277
Which of the following is the best example of kinetic energy being transformed into potential energy?
A.) Coasting down a hill on a bicycle
B.) A ball rolling up a hill
C.) Bending a paper clip
D.) Starting an automobile engine
Answers: 1
Physics, 22.06.2019 10:50, afonseca73
Asheet of steel 1.5 mm thick has nitrogen atmospheres on both sides at 1200oc and is permitted to achieve a steady-state diffusion condition. the diffusion coefficient for nitrogen in steel at this temperature is 6 x 10- 11 m2 /s, and the diffusion flux is found to be 1.2 x 10-7 kg/m2 -s. also, it is known that the concentration of nitrogen in the steel at the high-pressure surface is 4 kg/m3 . how far into the sheet from this high-pressure side will the concentration be 2.0 kg/m3 ? assume a linear concentration profile.
Answers: 3
Physics, 22.06.2019 19:20, anaiyamills
Two kilograms of air within a piston–cylinder assembly executes a carnot power cycle with maximum and minimum temperatures of 800 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. assume the ideal gas model for the air. determine the thermal efficiency, the volume at the beginning of the isothermal expansion, in m3, and the work during the adiabatic expansion, in kj.
Answers: 1
Which of the following is the best example of kinetic energy being transformed into potential energy...
English, 04.01.2021 03:40
English, 04.01.2021 03:40
English, 04.01.2021 03:40
Mathematics, 04.01.2021 03:40
Mathematics, 04.01.2021 03:40
Mathematics, 04.01.2021 03:40
Mathematics, 04.01.2021 03:40