if you were to set up a detector that measured which slit each photon went through, what would happen to the pattern and why?

How have the competing explanations' experiments on atoms affected the development of the atomic model?

If an athlete runs once around a track, back to the starting line, her average velocity is zero. true or false?

A10nc charge sits at a point in space where the magnitude of the electric field is 1500 n/c. what will the magnitude of the field be if the 10 nc charge is replaced by a 20 nc charge? assume the system is big enough to consider the charges as small test charges.