1. A wave on a rope has a wavelink of 2.0m And a frequency of 2.0 Hz. What is the speed of the wave? 2. If 10 waves pass by a dark on a lake every 16.0 seconds, What is the frequency of the wave?
3. What is the wavelength of an Earthquake wave if it has a speed of 5.0 km/s and a frequency of 10Hz?
4.The speed of light is 3.0 X 10^8 m/s. Red light has a wavelength of 7.0 X 10^-7 m. What is the frequency of red light?
5. And ocean waves moving towards the shore at a speed of 5m/s. If the frequency is 2.5Hz, what is the wavelength of the wave?
Pl help!!!

Ithink the answers is b i hope it my friend message me if i’m wrong and i’ll change my answer and fix it for you

This is the answer of your question

The fertilized egg  begins to develop into a hollow ball of cells called the blastocyst. 

1) what is light? light is an electromagnetic wave visible to the human eye.  2) what is a reflection? the rebounding of a light ray when it hits a mirror.3) what is the incident ray? contacts the surface of an object.4) what is the reflected ray? bounces off a reflective surface.5) what is the normal ray? perpendicular to the surface of a mirror.6) what is the angle of incidence? an angle formed by the incident ray and the normal.7) what is the angle of reflection? an angle formed by the reflected ray and the normal.8) what is refraction? (bending.)9) what is a converging lens? bring together light rays that pass through.10) what is a diverging lens? spreads out light passing through.11) focal point? the real point where the refracted rays meet when the incident rays run parallel.