At which of the following air temperatures will the speed of a sound wave be closest to 1.000 feet per
second?
A) -46°F
B) -487
C) -49°F
D) -50°F

Taylor's experiment: 1. accurately measured the speed of light 2. locked together the phases of two light sources so that the interference pattern would not shift 3. showed that man's reaction time was much slower than the speed of light 4. showed that individual photons have wave characteristics

Free runners jump long distances and land on the ground or a wall. how do they apply newton’s second law to lessen the force of impact?

Atomic nuclei of almost all elements consist of