Apackage is dropped from a hovering helicopter.

if it takes 15.0s before the package strikes the ground, how high above the ground was the package when it was released? (neglect air resistance and weight if the package)

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.