Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter ArenaQuestion
← ScienceWhich mechanism causes increased frictional drag on a spacecraft re-entering Earth's atmosphere at high speeds?
A)Molecular dissociation due to extreme heat✓
B)Turbulent flow exceeding laminar boundary layer
C)Electromagnetic radiation exceeding plasma frequency
D)Gravitational redshift affecting drag coefficient
💡 Explanation
When a spacecraft re-enters the atmosphere, extreme heat causes molecular dissociation because kinetic energy is converted into thermal energy, breaking apart atmospheric molecules into atoms and ions. Therefore increased frictional drag results from the changes in molecular composition, rather than turbulence, radiation, or redshift needing different conditions.
🏆 Up to £1,000 monthly prize pool
Ready for the live challenge? Join the next global round now.
*Terms apply. Skill-based competition.
Related Questions
Browse Science →- Which outcome increases when inertial confinement fusion pulse duration exceeds optimal timeframe?
- In a continuously operating refrigeration cycle, which outcome results following seal degradation leading gas leakage?
- Which consequence results when an ultra-high vacuum system exhibits increased outgassing?
- Which consequence results when an applied magnetic field perturbs electronic orbitals?
- Which process causes deviations from Beer-Lambert Law's linearity at high concentrations in spectrophotometry?
- Which event occurs when neutron moderators fail in fission?
