A Horizontally Projected Beam of Protons Travels at 55 Km/s

question 51

Multiple Choice

A horizontally projected beam of protons travels at 55 km/s into the space between two horizontal, parallel plates. The plates are separated by 7.4 cm, and they are 12 cm long. The uniform electric field between the plates is 7.2 V/m upward. If the beam enters the region at a height of 3.7 cm above the lower plate, at what height above the lower plate does the beam exit the region? The proton mass is 1.67 × 10^-27 kg.

• A) 4.4 cm
• B) 3.9 cm
• C) 5.1 cm
• D) 2.3 cm

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Definitions:

Cohort

A group of people sharing a common characteristic, such as being from a given time period.

Longitudinal Study

Research design that involves repeated observations of the same variables over short or long periods of time, often used to observe development changes.

Developmental Factor

An element that contributes to the growth or evolution of an organism or system.

Longitudinal Study

A research design that follows the same subjects over a period of time, allowing for the observation of changes or developments.