Which phenomenon causes increased drag on aerospace vehicles at transonic speeds near Mach 1?

💡 Explanation

As aerospace vehicles approach Mach 1, compression waves form. Wave drag increases sharply because of shockwaveinterference and pressure buildup as air is compressed causing energy dissipation. Therefore, drag increases due to shockwaves, rather than dissociation, friction, or pressure alone which are less significant at transonic speeds.

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