khan was standing on a bridge above a river. He drops a stone into the river and measuees the time it takes to splash into the water. if the time recorded was 9 seconds, determine the distance the stone covered before hitting the water​

Pe = 1/2k(x)^2  and .05n/m = .05x10^-9m = x 

Shy diving is the only sport which doesnot require a high level of physical fitness

In atoms, the electron carries a negative elementary or unit charge; the proton carries a positive charge. the two types of charge are equal and opposite. in an atom of matter, an electrical charge occurs whenever the number of protons in the nucleus differs from the number of electrons surrounding that nucleus.

There's nothing  on the list you provided to which that law applies.