The wavelength of green light from a traffic signal is centered at 5.20 x 10^-7 m. Calculate the frequency. -SHOW ALL YOUR WORK. -Include UNITS. -Round your answer to the appropriate number of SIGNIFICANT FIGURES. -Always answer in SCIENTIFIC NOTATION

Can someone me with 3 and 4 plz. this is for masteries test.

No copying 15 pts how does a free-body diagram tell you about the net force on an object?

Observation and experimentation have led many scientists to accept a theory about the origin of the universe. this theory is called the big bang theory. scientific evidence collected and observed by scientists around the world suggests that the universe is ever expanding from a hot and dense initial state. what makes this a scientific theory? (2 points)