If two successive resonant frequencies for an open ended organ pipe (open at both ends) are 356 Hz and 445 Hz, and the speed of sound in air is 343 m/s, determine the following.: a. frequency of the fundamental
b. length of the pipe

What are igneous intrusions and extrusions

How is coal extracted from mountaintop removal mines? a. dynamite is used to create underground tunnels where miners go to extract the coal. b. dynamite is used to break apart rocks and then draglines are used to remove the broken rock and reach the coal. c. coal in mountaintops is extracted by digging strips in the landscape to reach the coal. d. placer deposits in mountain river bottoms are removed by

In the circuit shown below, with each bulb holding a resistance of 60 ohms, how many amps of current are flowing? express your number as a decimal.