A 256 Hz tuning fork is resonating in a closed tube on a warm day when the speed of sound is 346 m/s. What is the length of the closed tube? 1.35 m
0.74 m
0.34 m
0.18 m

The softest and hardest minerals are: softest hardest

The charge on a charged sphere is: a)concentrated at its centerb)distributed uniformly throughout its volumec)clustered on its centerd)distributed uniformly over its surface

Who was the first scientist to measure speed as distance over time?