Yokka Stars

Task id12598

Task id12598

Seller: nerdmavr

Price: 0.15 USD

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Product description

The plane flies horizontally at a speed v = 470 m/sec. A man heard a sound from an airplane t = 21 seconds after the airplane flew past him. At what altitude does the plane fly? Speed of sound c = 330 l/sec.

Additional information

Short solution. Format gif