Explanation:
Gamma rays are high-frequency electromagnetic waves emitted from the nucleus. They have very high penetration power and are used in cancer therapy.
Explanation:
Charles' law: V₁/T₁ = V₂/T₂. V₂ = V₁ × T₂/T₁ = 2 L × 600 K / 300 K = 4 L. Volume doubles as absolute temperature doubles. Note: must use Kelvin, not Celsius. (600 K = 327°C). If mass and pressure are constant, volume is directly proportional to absolute temperature.
Explanation:
Cobalt-60 emits gamma rays used in radiotherapy to destroy cancerous cells. Carbon-12 and sodium-23 are stable. Phosphorus-32 is radioactive but used as tracer, not for cancer therapy.
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