Recent content by Physicsman788

  1. Physicsman788

    How do I know which enthelpy change to calculate?

    How do I know if I need to find the enthalpy of combustion or the enthalpy of formation? I know the equation to find the enthalpy change of each them but I don't know on a question if I have to find the enthalpy of combustion or the enthalpy of formation.
  2. Physicsman788

    How many undecayed nuclei will remain?

    Attempt at solution: 𝑁 = 500𝑒−5 = 3.3689735 undecayed nuclei remaining Edit: Sorry guys, I found it out its 500e-0.5x5
  3. Physicsman788

    What is Boundary Interaction in Echolocation and Internal Body Structures?

    What is a boundary and how can boundary interactions be used in echolocation and examining internal body structures?
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