Mr. Bailey decided to do an experiment to see if different types of popcorn pop faster in the microwave. The TV commercials say that Popalicious is the fastest popping popcorn in the world. Mr. Bailey’s hypothesis was, “If I pop Jiffy Pop, Popalicious, and Pop-Tastic popcorn in a microwave, then the Popalicious will pop faster because the commercial says so.” He takes Jiffy Pop, Popalicious, and Pop-Tastic and places them each in the microwave for 2 minutes. After two minutes is up, he counts the number of POPPED kernels in the bag. After three trials, Jiffy Pop had an average of 256 popped kernels, Popalicious had an average of 341 popped kernels, and Pop-Tastic had an average of 357 popped kernels.

Asun-sized star will spend most of its lifetime as a: white dwarf red giant protostar main-sequence star

Where do magnetic lines of force enter earth?

The inside surface of a cylindrical-shaped cave of inner diameter 1.0 m is continuously covered with a very thin layer of water. the cave is very long and it is open on both ends. the water on the cave surface is at a constant temperature of 15.5 °c. the cave is constantly exposed to wind such that 15.5 °c air flows through the cave at 4.5 m/s. the kinematic viscosity of the air is 14.66 x 10-6 m2/s and the molecular diffusion coefficient of water vapor in the air is 0.239 x 10-4 m2/s. because the cave diameter is so large, the flow of wind down the length of the cave, in the x direction, can be treated like it is external flow and the cave surface can be approximated as flat where appropriate. calculate the x value, in a) the transition to turbulent flow occurs at rex meters, where the air flow transitions from laminar to turbulent along the inside surface of the cave b) calculate the x value, in meters, where the bulk steady state concentration of water vapor in the air flowing in the cave is 10% of the saturation concentration. assume the air at the surface of the water layer is 100% saturated with water vapor. assume the wind entering the cave contained no moisture before it entered the cave. take into account the transition from laminar to turbulent flow when solving part b