Physics, 18.03.2021 03:30 crybaby222psyc
2. Which of the following types of energy does the sun use to heat up our atmosphere?
a) Mechanical energy
b) Thermal energy
c) Electrical energy
d) Chemical energy
Answers: 3
Physics, 22.06.2019 02:30
The boy of mass 30 kg is at r1= 2 meters from the fulcrum. of the girl is 45 kg, at what r2 must she sit so that they are balanced ?
Answers: 3
Physics, 22.06.2019 08:00
Why is it important always to use horizontal bars in unit fractions when performing unit conversions?
Answers: 3
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
2. Which of the following types of energy does the sun use to heat up our atmosphere?
a) Mechanical...
History, 15.07.2019 10:50
Mathematics, 15.07.2019 10:50
Biology, 15.07.2019 10:50
History, 15.07.2019 10:50
History, 15.07.2019 10:50
History, 15.07.2019 10:50
Social Studies, 15.07.2019 10:50
Mathematics, 15.07.2019 10:50
Mathematics, 15.07.2019 10:50
Biology, 15.07.2019 10:50