Radioactivity Basics: When a ?+ particle is emitted from an unstable nucleus, the atomic number of the nucleus
A. increases by 1.
B. decreases by 1.
C. increases by 2.
D. decreases by 2.
E. does not change.
Answer: B
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The primary source of the Sun's energy is
A) oxidation of carbon in the core. B) dark energy. C) gravitational collapse of the helium towards the core. D) the weak force creating energy from uranium decay. E) the strong force fusing hydrogen into helium.
______________ has the general formula (C6H10O5)n, where n may take on values up to 3000
Fill in the blank(s) with correct word
The process during which small nuclei combine to form larger ones is referred to as
A) nuclear fission. B) nuclear fusion.
The velocity of an object as a function of time is given by v(t) = 2.00 m/s + (3.00 m/s) t - (1.0 m/s2) t2. Determine the instantaneous acceleration of the object at time t = 4.00 s
A) -2.00 m/s2 B) -5.00 m/s2 C) 1.00 m/s2 D) 0.00 m/s2 E) -1.00 m/s2