What pattern did you observe when the tape was at different distances from the Van de Graaff machine?
PLS HELP

What is the difference between electrically neutral objects and electrically charged objects

Name three different units of energy used to measure heat and describe what type of situations each is usually used.

The energy of a photon was found to be 3.38 × 10–19 j. planck’s constant is 6.63 × 10–34 j • s. which color of light corresponds to this photon?