Physics, 24.02.2021 14:00 kleighlamb4850
Which of the following statements would be accepted as a valid criticism of
the big bang theory in scientific circles?
A. It cannot be tested directly.
B. It does not explain how stars are clustered.
C. It can be revised at a later date.
0
D. It is just an educated guess.
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
Physics, 22.06.2019 22:00
1. what is the relationship between wavelength and the penetrating power of an electromagnetic wave? a) the penetrating power has no relationship to the wavelength. b) the penetrating power increases as the wavelength increases. c) the penetrating power decreases as the wavelength increases. d) the penetrating power decreases as the wavelength decreases. 2. as ice melts and turns into water, the speed of sound through the material would most likely do what? justify your answer. a) the speed would not change because the material is always water. b) the speed of sound would increase because the density of water is less than that of ice. c) the speed of sound would increase because energy is added to ice in order to make it melt. d) the speed of sound would decrease because sound travels faster through solids than liquids. 3.which of these waves need a medium to travel through? a) sound b) x-rays c) infrared rays d) visible light
Answers: 3
Which of the following statements would be accepted as a valid criticism of
the big bang theory in...
History, 20.08.2019 02:00
Mathematics, 20.08.2019 02:00
Social Studies, 20.08.2019 02:00
Social Studies, 20.08.2019 02:00
Mathematics, 20.08.2019 02:00
Mathematics, 20.08.2019 02:00
Mathematics, 20.08.2019 02:00
English, 20.08.2019 02:00
Social Studies, 20.08.2019 02:00
History, 20.08.2019 02:00