What is the overall charge of an atomic nucleus? a. neutral
b. positive
c. negative
d. depends on the atom; can be positive or negative

In raising a 6200-n piano with a pulley system, the movers note that, for every 2.2 m of rope pulled down, the piano rises 0.12 m . ideally, find the force required to lift the piano.

The image below shows numerous volcanic mountains in the pacific northwest. what is the most likely cause of the volcanic and earthquake activity in this region?

Ryan is examining the energy of the particles in a bar of gold. what is ryan most likely studying?