One molecule of dinitrogen tetronide contains four nitrogen atoms and two origen atoms
B four nitrogen atoms and four or ygen atoms
two nitrogen atoms and two oryzen atomo
two nitrogen atoms and four onszen atoms

Amachinist needs to remove a tight fitting pin of material a from a hole in a block made of material b. the machinist heats both the pin and the block to the same high temperature and removes the pin easily. what statement relates the coefficient of thermal expansion of material a to that of material b? a) the situation is not possible, heating block b will shrink the hole in the material as the material expands with increasing temperatureb) material b has the same coefficient of expansion as does material ac) material b has a negative coefficient of expansion and a has a positive coefficient of expansiond) material a has a greater coefficient of expansion than does material be) material b has a greate

Amplitude is a measure of a waves a; speed b; distance c; energy d; frequency

Aplane travels 1000 miles in 5 hours .what is the planes average speed?