Tidal, wind, and oil energy are derived from the sun. Nuclear isn't.
Answer:
Y, X, Z, W
Explanation:
You know W is the most recent because it features the nucleus in the middle and the electron cloud which was shown in models after the others.
The correct answer is the Sun.i hope that helped! if you have any questions or concerns about the answer i gave you please let me know!!
Vo = 18 m/s
angle 35 degrees
1) Components of the initial velocity
Vox = Vo*cos(35) = 18*cos(35) m/s = 14.74 m/s
Voy = Vo* sin(35) = 18*sin(35) m/s = 10.32 m/s
2) Equations of postion:
x = Vox*t
y = Voy*t - gt^2 / 2
3) Calculations
A) t = 0.5 s, t = 1.0 st = 1.5 s, t = 2.0 s
x = 14.74 * t
t = 0.5 s => x = 14.74 m/s * 0.5s = 7.37 m
t = 1.0 s => x = 14.74 m/s * 1.0s = 14.74 m
t = 1.5s => x = 22.11 m
t = 2s => x = 29.48 m
B)
y = Voy*t - gt^2 / 2
Voy = 10.32 m/s
g = 10 m/s (approximation)
y = 10.32*t - 5t^2
t = 0.5 s=> y = 3.91m
t = 1 s => y = 5.32m
t = 1.5 s => y = 4.23m
t = 2 s => y = 0.64 m
Answer:
a) 
b) 
c) 
Explanation:
Given:
distance between the fixed end of strings, 
mass of string, 
tension in the string, 
a)
<u>Since the wave vibrating in the string is in third harmonic:</u>
Therefore wavelength λ of the string:



b)
We know that the velocity of the wave in this case is given by:

where:
linear mass density



<u>Now, frequency:</u>



c)
When the vibrations produce the sound of the same frequency:

Velocity of sound in air:

<u>Wavelength of the sound waves in air:</u>

