Most of the information's required are already given in the question. Based on those information's the answer can be easily deduced.
Wavelength of the sound wave = 0.450 meters
Speed of the sound wave = 330 meters per second
We already know
v=f<span>λ
</span>330 = f * 0.450
f = 330/0.450
= 733.33 hertz
So the frequency of the wave is 733.33 hertz
What two forces are required for generators and electric motors to work? “A” Electricity and magnetism.
In an electric motor, the energy transformation begins as “A” Electrical And becomes mechanical.
Answer:
A- A demonstration shows how something works, often including models
Explanation:
A demonstration allows, through experimentation, to show how nature works and in that way can include the explanation of scientific theories that explain the set of observed facts, that is, it serves as a demonstration of the underlying scientific principles.
I can only help you with the last two questions from lesson 5.01
-Because light is the fastest thing in our universe you can calculate the distance by how much time light has to take in order to travel that distance which is light years
-Light years, and every measurement you can think of. Except light years are the easiest most efficient way to measure distances
