The speed of sound in air can be expressed as 331 m/sec at 0 degree celsius. it increases 0.6 m/sec for each celsius degree above zero. assume the temperature of the room is 25 degree celsius. calculate the speed of sound in m/s at this temperature.

Describe the path of the electric current through a circuit?

What is the type of the reaction below? bacl2 + h2so4 → 2 hci + baso4 double replacement synthesis single replacement decomposition

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