What is the speed of sound in feet per second?

The speed of sound in air at sea level and at standard atmospheric conditions is approximately 1126 feet per second. This value can change based on various factors such as temperature and humidity, but 1126 ft/sec is widely accepted as the standard speed for sound in air.

In contrast, lower speeds like 900 ft/sec would not accurately reflect the speed of sound under normal conditions, and higher speeds such as 1500 ft/sec and 2000 ft/sec are not achievable for sound in air. The speed of sound can be significantly higher in denser media, such as water or steel, but the question specifically refers to the speed of sound in air. Hence, the selection of 1126 ft/sec is the best representation of the speed of sound in typical conditions.