How many moles are in a sample of 3.98 x 102 atoms of aluminum (AI)?

Si una estrella no tiene paralaje medible, ¿qué puedes inferir?

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

Type the letter that represents the correct location for each particle type below. the neutron is found at __ the electron is found at __ the proton is found at __