To determine a waves' frequency, you must know the (2 points) Select one:
a. distance it travels
b. number of oscillations in a given period of time
c. distance between the crest and trough
d. height of the wave

b

to determine the frequency you must know oscillations and the given time

beta is electron from nucleus

something from nucleus has changed, but charge must be same for cons of charge

igneous rocks also form where plates converge. the subducting plate melts as it sinks into the crust of the earth, and the melt rises into the overriding plate forming volcanoes. metamorphic rocks are formed mainly in the lithosphere, wherever there is high pressure and high temperature. -woods