Question

через сколько часов цунами , возникнув у берегов Чили, достигнут Японских островов

Answer 1

Берешь среднюю скорость цунами - 750 км/час, расстояние между Чили и Японией - 16000 км и расчитываешь 
750 -1 
16000 - х 
16000 / 750 = 21 час 
При более слабых землетрясениях и действии дна моря: 650 км/час -----24 часа 

Answer 2

Calculating the Time for a Tsunami to Reach Japan from Chile

To calculate the time it takes for a tsunami, originating from the coast of Chile, to reach the Japanese islands, we can use the following information:

- The distance between Chile and Japan - The average speed of a tsunami in the open ocean

Distance between Chile and Japan: The distance between Chile and Japan is approximately 17,000 kilometers.

Average speed of a tsunami in the open ocean: The average speed of a tsunami in the open ocean is about 800 kilometers per hour.

Calculation:

To calculate the time it takes for a tsunami to reach Japan from Chile, we can use the formula:

Time = Distance / Speed

Plugging in the values: Time = 17,000 km / 800 km/h Time ≈ 21.25 hours

Therefore, it would take approximately 21.25 hours for a tsunami, originating from the coast of Chile, to reach the Japanese islands.