Topes:
- atoms of the same element that have different
numbers of neutrons, which affects the stability of the nucleus. carbon 14
is a radioactive isotope found in all living things which scientists
calculate the age of a specimen. radioactive isotopes doctors diagnose
disease, and locate and treat certain types of cancer.

Calculate the frequency of a wave in a spring toy. the wave has a speed of 1.1 meters per second and a wavelength of 0.1 meters. *

In a heat engine of 1000 j of heat enters the system and the piston does 500 j of work what is the final internal energy of the system if the inital energy was 2000 j we have to do all of these down here 1)write the equation 2)list out your know variables 3)plug the numbers into the equations 4)solve 5)write your solution statemtn that includes inital energuy and final energuy added

Carbon-14 undergoes radioactive decay in the reaction above. determine the type of radiation emitted in this reaction and describe what is happening to the nucleus during this reaction.