Engineering, 15.10.2019 05:30 naomicervero

(practice work, not graded)

1. identify an object in your house that contains a physical system and list three questions you could use to define the system.

2. use the law of thermodynamics to explain why an ice cube melts in a cup of hot tea.

3. the unit states that systems are not only part of engineering, but also other parts of society, such as financial systems, political systems, etc. could using systems thinking be for these kinds of systems as well? explain your answer.

4. why do you think that engineering students are encouraged to think about uses for technology beyond entertaining society?

5. create a short poem or haiku (a poem with 5 syllables in the first line, 7 syllables in the second, and 5 in the third) to explain a problem you are currently trying to solve. do not use more than 20 words to express the problem.

( explain answer, i really don't understand)

Answers: 1

Show answers

Another question on Engineering

Engineering, 04.07.2019 03:10

What precautions should you take to prevent injuries when dealing with heavy loads?

Answers: 1

Answer

Engineering, 04.07.2019 18:10

The temperature of air decreases as it is compressed by an adiabatic compressor. a)- true b)- false

Answers: 2

Answer

Engineering, 04.07.2019 18:10

Consider a large isothermal enclosure that is maintained at a uniform temperature of 2000 k. calculate the emissive power of the radiation that emerges from a small aperture on the enclosure surface. what is the wavelength ? , below which 10% of the emission is concentrated? what is the wavelength ? 2 above which 10% of the emission is concentrated? determine the wavelength at which maximum spectral emissive power occurs. what is the irradiation incident on a small object placed inside the enclosure?

Answers: 2

Answer

Engineering, 04.07.2019 19:10

Tom is having a problem with his washing machine. he notices that the machine vibrates violently at a frequency of 1500 rpm due to an unknown rotating unbalance. the machine is mounted on 4 springs each having a stiffness of 10 kn/m. tom wishes to add an undamped vibration absorber attached by a spring under the machine the machine working frequency ranges between 800 rpm to 2000 rpm and its total mass while loaded is assumed to be 80 kg a) what should be the mass of the absorber added to the machine so that the natural frequency falls outside the working range? b) after a first trial of an absorber using a mass of 35 kg, the amplitude of the oscillation was found to be 10 cm. what is the value of the rotating unbalance? c) using me-3.5 kg.m, find the optimal absorber (by minimizing its mass). what would be the amplitude of the oscillation of the absorber?

Answers: 3

Answer

You know the right answer?

(practice work, not graded)

1. identify an object in your house that contains a physical...

Questions