Awave has a wavelength of 20 mm and a frequency of 5 hz what is the speed?
100 mm/s
100 hertz/s
4 mm/s
25 mm/s

Asap 1. which surface feature of the moon is characterized by mountainous areas? question options: maria terrae regolith craters 2.which statement describes surface features called maria on the moon? question options: layers of dust and rock deep areas of cooled lava deep, rocky and barren valleys highlands and mountainous areas

What are similarities and differences between refraction, reflection, diffraction and absorption?

Lacie kicks a football from ground level at a velocity of 13.9 m/s and at an angle of 25.0° to the ground. how long will the ball be in the air before it lands? how far will the football travel before it lands?