The speed of any electromagnetic waves (and that includes radio waves) in a vacuum is always the same - approximately 300,000 km/second. The wavelength is irrelevant.
42m equals -966 = -924
Model 42M(c) was made 1947-1950.
Assuming you mean a Mossberg Model 42M(b), between $75 and $200, depending on condition. These are excellent target rifles.
It can be simplified to -41m
42m
90
The pH of a 42m HCl solution would be approximately -log(42) = -1.62. This solution is strongly acidic.
Determine the area of one face (2m x 2m = 42m). Multiply by the number of faces on a cube - 6. So, 6 x 42m = 242m total surface area.
50-150 or so
1944-1950
Determine the area of one face (2m x 2m = 42m). Multiply by the number of faces on a cube - 6. So, 6 x 42m = 242m total surface area.
Depending on condition, from $100-200.