¿Con qué cualidad del sonido está relacionada la Amplitud de onda?
1 answer:
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The correct answer is: acceleration.
In fact, the slope of the graph of velocity versus time corresponds to the ratio between the variation of v and the variation of t:
But this is exactly the definition of acceleration:
, so acceleration is the correct answer.
In fact, the slope of the graph of velocity versus time corresponds to the ratio between the variation of v and the variation of t:
But this is exactly the definition of acceleration:
Answer:
the energy when it reaches the ground is equal to the energy when the spring is compressed.
Explanation:
For this comparison let's use the conservation of energy theorem.
Starting point. Compressed spring
Em₀ = K_e = ½ k x²
Final point. When the box hits the ground
Em_f = K = ½ m v²
since friction is zero, energy is conserved
Em₀ = Em_f
1 / 2k x² = ½ m v²
v = x
Therefore, the energy when it reaches the ground is equal to the energy when the spring is compressed.