subject
Engineering, 03.06.2021 17:30 thebestaround15

Question 10(Multiple Choice Worth 2 points) (03.02 MC)

Which statement best describes how this puddle demonstrates that matter is too small to be seen without magnification?

a persons feet standing next to a puddle on a sidewalk

The light causes a reflection to appear on the surface of the water.
The person cannot see the bottom of the puddle.
The twig floats on top of the puddle of water.
The water cannot be seen when it evaporates.

ansver
Answers: 2

Another question on Engineering

question
Engineering, 04.07.2019 18:10
Coiled springs ought to be very strong and stiff. si3n4 is a strong, stiff material. would you select this material for a spring? explain.
Answers: 2
question
Engineering, 04.07.2019 18:10
The higher the astm grain size number, the finer the gran is. a)-true b)-false
Answers: 2
question
Engineering, 04.07.2019 18:20
The characteristic roots of a dynamic system are: 1.7920 1.8160 i, -1.7920 1.8160 i, -0.4160 what is the order of this system? what are the settling time and damping ratio of the system?
Answers: 3
question
Engineering, 04.07.2019 19:10
10 kg of co2 is initially contained at 400 kpa and 300 k. the gas constant for carbon dioxide is 189 j/lkg k) and has a specific heat ratio, k, of 1.289. isentropic expansion then occurs until the pressure is 200 kpa. a) determine the initial volume of co2 in m. b) determine the final temperature in k. c) determine the work done by the system during the expansion kl.
Answers: 2
You know the right answer?
Question 10(Multiple Choice Worth 2 points) (03.02 MC)

Which statement best describes h...
Questions
Questions on the website: 13722367