Wave speed = frequency * wavelength
We need to rearrange this equation because we are finding the wavelength :
Wavelength = wave speed / frequency
To rearrange it, I just divided it by frequency so that wavelength was the subject.
Now, input these numbers into this equation :
Wavelength = wave speed / frequency
Wavelength = 25 / 5
Wavelength = 5m
Answer:
0.57 m
Explanation:
The wavelength of a wave is given by:
where
is the wavelength
v is the speed of the wave
f is its frequency
In this problem, we have
v = 343 m/s is the speed of a sound wave through air
is the frequency of the wave
Substituting into the formula, we find the wavelength
1- You should always have a question for your experiment.
2- You need to conduct background research. It helps to write down your sources so you can cite your references.
3- Propose a hypothesis (educated guess on what you believe the outcome of the experiment will be)
4- Design and perform an experiment to test your hypothesis (include independent and dependent variable)
5- Record observations and analyze what the data means.
6- Conclude whether you need to accept or reject your hypothesis, which accepting means your hypothesis was right and rejected is if it was wrong.
The total momentum of the system (cart 1+ cart 2) is conserved after the collision.
The initial momentum is
(1)
where the negative sign in front of cart 2 momentum is due to the fact it goes in the opposite direction of cart 1.
The final momentum is
(2)
because the two carts stick together, therefore their total mass is (m1+m2) moving at the new speed vf.
By requiring that (1) is equal to (2), we can solve to find the final speed vf:
where the positive sign means the two carts are now going in the positive direction (i.e. the initial direction of cart 1)