True, because energy, frequency, and wavelength are all properties of sound, and sound is an electromagnetic wave. The electromagnetic spectrum encompasses a continuous range of frequencies or wavelengths of electromagnetic radiation, ranging from long wavelength, low energy radio waves to short wavelength, high frequency, high energy gamma rays.
Answer:
422.4cm²
Step-by-step explanation:
area of circle is pi x 12² which is 144 pi
144pi subtract 30 is 422.4
190mph
I used speed calculator with advanced mode
HTTP://www.omnicalculator.com/everyday-life/speed
Answer:
4 is a factor
Step-by-step explanation:
4x+8
4x = 4*x
8 = 4*2
4(x+2)
4 is a factor
Answer:
5÷9
Step-by-step explanation:
5/9 is a fraction where the numerator is divided by the denominator
5 divide by 9
5÷9