If Uranium-234 decays via alpha emission, what is the likely product of radioactive decay? (U, atomic no. = 92)
A) Th
B) Np
C) Th
D) Np
E) none of the above
A
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Although Putin's policies have stabilized the Russian economy, it is plagued by:
A) high fertility rates B) lack of natural resources for export C) rent-seeking siloviki D) slavery
Judge the following sentence according to the criteria given below: The Hawaiian Islands are safe from tropical cyclones BECAUSE they are islands near the center of a large ocean
A) The assertion and the reason are both correct, and the reason is valid. B) The assertion and the reason are both correct, but the reason is invalid. C) The assertion is correct, but the reason is incorrect. D) The assertion is incorrect, but the reason is correct. E) Both the assertion and the reason are incorrect.
Used motor oil is hazardous waste.
Answer the following statement true (T) or false (F)
Two projectiles are fired at equal speeds but different angles. One is fired at an angle of 30° and the other at 60°. Neglecting air resistance, the projectile to hit the ground first will be the one fired at
A) 30°. B) 60°. C) Both will hit at the same time.