Ved mirror
2. State the laws of reflection of light...
![ansver](/tpl/images/cats/User.png)
Answers: 3
Another question on Physics
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 10:50
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
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 16:50
Two loudspeakers, 5.5 m apart and facing each other, play identical sounds of the same frequency. you stand halfway between them, where there is a maximum of sound intensity. moving from this point toward one of the speakers, you encounter a minimum of sound intensity when you have moved 0.33 m . assume the speed of sound is 340 m/s.part a) what is the frequency of the sound? part b) if the frequency is then increased while you remain 0.21 m from the center, what is the first frequency for which that location will be a maximum of sound intensity? express your answer to two significant figures and include the appropriate units.
Answers: 2
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 19:00
The law of reflection states that the angle of reflection is equal to the angle of
Answers: 1
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 21:30
Which are causes of mechanical weathering? (check all that apply) a. acid rain b. plant growth c. animal actions d. carbon dioxide e. pressure release i chose b & e and got the question wrong.
Answers: 2
You know the right answer?
Questions
![question](/tpl/images/cats/fizika.png)
Physics, 20.04.2021 09:20
![question](/tpl/images/cats/himiya.png)
Chemistry, 20.04.2021 09:20
![question](/tpl/images/cats/mat.png)
Mathematics, 20.04.2021 09:20
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 20.04.2021 09:20
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/health.png)
Health, 20.04.2021 09:20
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/pravo.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 20.04.2021 09:20
![question](/tpl/images/cats/mat.png)
Mathematics, 20.04.2021 09:20
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/himiya.png)
Chemistry, 20.04.2021 09:20
![question](/tpl/images/cats/mat.png)
Mathematics, 20.04.2021 09:20
![question](/tpl/images/cats/mat.png)
Mathematics, 20.04.2021 09:20
![question](/tpl/images/cats/mat.png)
Mathematics, 20.04.2021 09:20
![question](/tpl/images/cats/mat.png)
Mathematics, 20.04.2021 09:20
![question](/tpl/images/cats/mat.png)
Mathematics, 20.04.2021 09:20