Emergency frequency of an electromagnetic wave determines how much radiant energy is carried.

the higher the frequency of a wave, the blank the wavelength of the wave

Zoe is investigating the composition of substance a, an unknown substance. using chemical processes, she analyzes substance a and determines it is composed of sodium, oxygen, and hydrogen atoms in a ratio of 1 : 1 : 1. what is substance a? a. a compound b. an element c. a heterogeneous mixture d. a homogeneous mixture

When a device is used in a circuit in which the voltage is 81 v the current flowing through the device is 3 a what is the resistance of the device

Which of the four hypothetical substances you investigated would be most harmful to living organisms? 50 points!