The wavelength of the sound wave is 0.24 m
Explanation:
First of all, we calculate the speed of the wave, which is the ratio between the distance covered by the wave and the time taken:
where, for the wave in this problem
d = 91.4 m
t = 2 s
Substituting,
Now we can find the wavelength of the wave by using the wave equation:
where
v is the speed of the wave
f is its frequency
is the wavelength
For the wave here,
f = 192 Hz
v = 45.7 m/s
Solving for the wavelength,
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<h3>
Answer: The acceleration doubles</h3>
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Explanation:
Consider a mass of 10 kg, so m = 10
Let's say we apply a net force of 20 newtons, so F = 20
The acceleration 'a' is...
F = ma
20 = 10a
20/10 = a
2 = a
a = 2
The acceleration is 2 m/s^2. Every second, the velocity increases by 10 m/s.
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Now let's double the net force on the object
F = 20 goes to F = 40
m = 10 stays the same
F = ma
40 = 10a
10a = 40
a = 40/10
a = 4
The acceleration has also doubled since earlier it was a = 2, but now it's a = 4.
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In summary, if you double the net force applied to the object, then the acceleration doubles as well.
Answer:
model 3
Explanation:
Boron with atomic number 5 will have 3 valence electrons
