The top of the syringe is a circle. You need to

compute its area for use in later computations of

pressure values. Start by using a ruler to

measure the diameter. Estimate to the nearest

0.01 cm.?cm

This is kenetic energy.

Is there any opitions? if you have the periodic table, the noble gases are 8a family, the halogen are the 7a family, and the nonmetal are  carbon, nitrogen, phosphorus, oxygen, sulfur, selenium, fluorine, chlorine, bromine, iodine and astatine.