![subject](/tpl/images/cats/fizika.png)
Physics, 16.12.2021 07:30 kiki197701
which of the following accurately describes density? : the fact that heat rises and hot air cools, a student observes that styrofoam sinks in water, the fact that force is equal to mass times acceleration, how much matter is in how much space
![ansver](/tpl/images/cats/User.png)
Answers: 2
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Other questions on the subject: Physics
![image](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 01:30, chloe1107
Which explanation describes the forces involved for a person to walk down the sidewalk? a. the person's feet push backward on the sidewalk; the sidewalk pushes backward on the person. b. the person's feet push forward on the sidewalk; the sidewalk does not push on the person. c. the person's feet push backward on the sidewalk; the sidewalk pushes forward on the person. d. the person's feet push forward on the sidewalk; the sidewalk pushes forward on the person.
Answers: 1
![image](/tpl/images/cats/fizika.png)
![image](/tpl/images/cats/fizika.png)
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
You know the right answer?
which of the following accurately describes density? : the fact that heat rises and hot air cools, a...
Questions in other subjects:
![Konu](/tpl/images/cats/istoriya.png)
History, 15.10.2019 09:00
![Konu](/tpl/images/cats/istoriya.png)
![Konu](/tpl/images/cats/en.png)
![Konu](/tpl/images/cats/mat.png)
Mathematics, 15.10.2019 09:00
![Konu](/tpl/images/cats/biologiya.png)
Biology, 15.10.2019 09:00
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/health.png)
![Konu](/tpl/images/cats/biologiya.png)
![Konu](/tpl/images/cats/istoriya.png)
History, 15.10.2019 09:00