<h2>
Answer: 1.25 km</h2>
Explanation:
The velocity 
of a wave is given by:
(1)
Where:
is the wavelength of the wave
is the frequency of the wave. Its unit is Hertz (
)
So, we have to find from equation (1):
(2)
Finally we obtain the wavelength of the earthquake wave:
Answer:
v² = u² + 2x²
Explanation:
v² = u² + 2as is only valid for constant acceleration. Here, the acceleration is a function of position. We can find the function of velocity by integrating. Acceleration is the derivative of velocity with respect to time:
a = 2x
dv/dt = 2x
Apply chain rule:
dv/dt = dx/dt × dv/dx
dv/dt = v × dv/dx
Therefore:
v dv/dx = 2x
Separate the variables and integrate:
v dv = 2x dx
½ v² |ᵤᵛ = x² |₀ˣ
½ (v² − u²) = x²
v² − u² = 2x²
v² = u² + 2x²
False, geothermal means from underground. They use normal solar panels. Hope this helps.
The engine's efficiency is (35J)/125J) = 28% .
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