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← ScienceWhich risk increases when a spacecraft shield undergoes rapid micrometeoroid bombardment?
A)Capacitance discharge induces unintended thruster firing✓
B)Heat shield sublimation accelerates unexpectedly faster rate
C)Electromagnetic pulse disables onboard gyroscopes
D)Metal fatigue lowers temperature damage threshold
💡 Explanation
A micrometeoroid strike charges the shield, and capacitance discharge generates current because accumulated charge tunnels through weakened insulators, therefore, triggering parasitic current, rather than bulk heating, or damage thresholds.
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