Hypoid ring and pinion gears are used in passenger car drive axles. Technician A says that the concave side of a hypoid ring gear tooth is called the drive side. Technician B says the heel is the small, inner end of the ring gear tooth. Which technician is correct?

Texas-flood watch and coastal flood barrierscalifornia-try and look for under ground water stream 

Iwas thinking the wavelength is one half its original value

Answer;

hot magma rises and pushes up toward the lithosphere, and as it cools it cycles back down toward the core to be heated again.

explanation; convection currents are the circular pathways taken by a fluid that enhances heat transfer by the process known as convection which occurs in fluids.convection currents transfer heat from one place to another by mass motion of a fluid. earth mantle is in a semi-liquid state and behaves like any other fluid, rising up from the bottom of the mantle after becoming hotter and less dense from heat of the earth's core, as the rock loses heat into the earth's crust it becomes cooler and more dense, then sinking back down to the core, then repeating the cycle.

In the conservation of mass, mass (which is the same as energy) can never be created or destroyed in the same way oil is formed from the remains of small animals and plants that died and fell to the bottom of the sea and their mass (energy) is conserved as oil.