Answer:
The distance between two posts
Explanation:
As the students have already measured the amount of time necessary for the wave to oscillate up and down that is on the string between two posts,They have to measure the speed of the wave.
ie v=fλ
<em>They have to measure distance between the posts.
</em>
Because wavelength is equal to the distance between the posts ie full length of string.
The frequency of the wave is calculated by
f=
1/T
Where is the time period which the students have calculated ie the amount of time taken to oscillate up and down,
Thus the wave speed is calculated using formula
v=λ/T
Answer:
Explanation:
There are three types of waves mainly.
1. Mechanical waves : Which needs a medium for there propagation. For example, sound waves
2. Non mechanical waves : Which do not need a medium or their propagation.
for example, light waves
3. Electromagnetic waves : Which are produced due to the interaction of electric and magnetic field. for example, X rays, light waves
The wave motion are of two types.
1. Transverse wave motion
2. Longitudinal wave motion
Gravitational Potential Energy (GPE) before fall = Kinetic energy on impact
GPE = mgh
GPE = 5kg x 9.8m/s^2 x 10m
GPE = 490 J
Kinetic Energy = 490 J
(This is assuming that gravitation field strength (g) is 9.8m/s^2, sometimes you may round this to 10m/s^2, therefore making the final result:
Kinetic energy = 500 J)
Yes? I think a tutor would help with this!!!!
30 volts
E= IxR
See ohms law calculator image below
