The solar neutrino problem was solved when it was discovered that neutrinos ________ during the time they take to reach the Earth
Fill in the blank(s) with correct word
oscillate or change into other types of neutrinos
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During loading in a stress-strain test of a material, we observe that the plot is not linear and has no discontinuities. We can assume that:
(a) The material is nonlinear elastic. (b) The material is anelastic. (c) There is elastic and plastic strain. (d) None of the above can be assumed.
Most of the extrasolar planetary systems discovered to date are
A) very similar to our own solar system with inner rocky terrestrial planets and outer gaseous Jovian planets B) similar to our solar system in having inner rocky terrestrial planets but different in having no Jovian planets C) identical to our own with the same number and types of planets as our own solar system D) quite different than our own solar system, many with Jovian planets found close to their parent stars
If the population of a country doubles every 25 years, a 1980 population of 10 million will reach 80 million in the year
a. 2005. b. 2030. c. 2055. d. 2080. e. 2105.
7.0 kg is hung from a steel wire of diameter 0.75 mm and length 2.5 meters. (S = 8.2 × 1010 N/m2; Y = 20 × 1010 N/m2)
(a) By how much does the wire stretch? (b) If the wire diameter were doubled, what would be the stretch?