stars begin burning helium to carbon when the temperature rises in the core. this temperature increase is caused by

In 1980, alfa romeo introduced the first system to smooth a rough idle caused by ignition and camshaft timing changes.

Ann walks 80 meters on a straight line 33 ∘ north of east starting at point 1. draw ann's path. represent ann's walk with a vector of length 80 meters. draw the vector starting at point 1. the length given in the display is in meters.

Which is the correct symbol for an isotope of iodine with 53 protons and 78 neutrons?