Which waves are mechanical waves?
a.
microwaves
b.
sound waves
c.
light waves
d.
radio waves

Karen is running forward at a speed of 9 m/s. she tosses her sweaty headband backward at a speed of 20 m/s. the speed of the headband, to the nearest whole number relative to a stationary observer watching karen

Infrared radiation has wavelengths that are shorter than visible light is part of the visible light spectrum has wavelengths that are longer than visible light has the same wavelengths as ultraviolet radiation

Which of the following list the divisions of the geologic time scale in order from longest to shortest