A radioactive isotope with an atomic number of 90 undergoes beta decay. What is the atomic number of the daughter nucleus?
A) 89
B) 91
C) 92
D) 88
B
Physics & Space Science
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The Gateway Arch in St. Louis, Missouri, is a
A) parabola. B) hyberbola. C) catenary.
Physics & Space Science
The strings in musical instruments that have greater mass tend to produce notes of
A) higher frequency. B) lower frequency. C) the same frequency. D) none of the above
Physics & Space Science
The size of a quasar can be measured by ________
Fill in the blank(s) with correct word
Physics & Space Science
A metal wire has a resistance of 25.00 W under room temperature conditions of 25°C. When the wire is heated to 85°C the resistance increases by 1.95 W. What is the temperature coefficient of resistivity of this metal?
a. 1.3 × 10^-3 (°C)-1 c. 5.0 × 10^-4 (°C)-1 b. 1.5 × 10^-3 (°C)-1 d. 2.5 × 10^-3 (°C)-1
Physics & Space Science