How far can light travel in one year?
a. 30 million km
b. 10 trillion km
c. 300,...
Physics, 06.10.2019 12:40 juliana0122
How far can light travel in one year?
a. 30 million km
b. 10 trillion km
c. 300,000 km
d. 100 billion km
Answers: 1
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
Physics, 22.06.2019 11:30
Why is the energy that results from a roller coaster's position at the top of a hill referred to as potential energy?
Answers: 1
Mathematics, 17.05.2021 14:00
Mathematics, 17.05.2021 14:00
History, 17.05.2021 14:00
English, 17.05.2021 14:00
Mathematics, 17.05.2021 14:00
Mathematics, 17.05.2021 14:00
English, 17.05.2021 14:00
History, 17.05.2021 14:00
Physics, 17.05.2021 14:00
History, 17.05.2021 14:00
English, 17.05.2021 14:00