1. The speed of all electromagnetic waves in empty space is 3.00 × 108 m/s.
What is the wavelength of radio waves emit- ted at 96.9 MHz?
Answer in units of m.
2. What is the wavelength of visible light emit- ted at 4.6 × 108 MHz?
Answer in units of m.
3. What is the wavelength of X rays emitted at 3.4 × 1012 MHz?
Answer in units of m.

1. 3.10 m

2. 0.65 m

3.

Explanation:

Speed of light, s is given as the product of frequency and wavelength and expressed as s=wf where s is the speed of light, w is the wavelength in m and f is the frequency in Hz. Making wavelength, w the subject of the formula then

and making substitution for all the three parts then

1.

Substituting f for 96.9 MHz which is equivalent to and s for then

2.

The frequency is given as  note that the units should be Hz not MHz after giving it already raised to power 10 and substituting this for f and for s then

3.

The frequency is given as and substituting this for f and for s then

answer: the metamorphic rocks are formed when they are exposed to high pressure and high temperatures. this happens when one of the earth's plates comes in contact with the other plate by traveling in opposite directions, straight into each other or slipping under one another. the friction that is caused by this activity results in   melting of rocks and when it cools they are known as metamorphic rocks. this process needs a controlled amount of pressure and temperature otherwise it may turn into magma.