The Radius of a Typical Nucleus Is About $5 \times 10 ^ { - 15 } \mathrm {~m}$

question 61

Multiple Choice

The radius of a typical nucleus is about $5 \times 10 ^ { - 15 } \mathrm {~m}$ . Assuming this to be the uncertainty in the position of a proton in the nucleus, estimate the uncertainty in the proton's energy, in MeV. $\left( m _ { \text {proton } } = 1.67 \times 10 ^ { - 27 } \mathrm {~kg} , h = 6.626 \times 10 ^ { - 34 } \mathrm {~J} \cdot \mathrm { s } , 1 \mathrm { eV } = 1.6 \times 10 ^ { - 19 } \mathrm {~J} \right.$ )

• A) \(0.6 \mathrm { MeV }\)
• B) \(1.0 \mathrm { MeV }\)
• C) \(0.4 \mathrm { MeV }\)
• D) \(0.8 \mathrm { MeV }\)

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A prescription medication known generically as alprazolam, used primarily to treat anxiety disorders and panic attacks by calming the nervous system.

Ativan

A prescription medication known generically as lorazepam, used to treat anxiety disorders, insomnia, and certain types of seizures.

Antipsychotic Drugs

Medications used to treat symptoms of psychosis, including delusions and hallucinations, primarily in mental health conditions.

Dopamine

A type of neurotransmitter in the brain that plays a key role in controlling the reward and pleasure centers, as well as regulating movement and emotional responses.