Answer:
- Waves with higher amplitude transfer HIGHER energy.
- Waves with higher frequency transfer HIGHER energy.
The Definition of Work is given by:
Entering the unknowns, we have:

If you notice any mistake in my english, please let me know, because i am not native.
The skier's speed at time <em>t</em> is
<em>v</em> = (23 m/s²) <em>t</em>
To reach a speed of 9.3 m/s, the skier would need
9.3 m/s = (23 m/s²) <em>t</em>
<em>t</em> = (9.3 m/s) / (23 m/s²)
<em>t</em> ≈ 0.404 s
The mass that must be added is 0.628 kg
Explanation:
The period of a mass-spring system is given by

where
m is the mass
k is the spring constant
For the initial mass-spring system in the problem, we have
m = 0.500 kg
T = 1.36 s
Solving for k, we find the spring constant:

In the second part, we want the period of the same system to be
T = 2.04 s
Therefore, the mass on the spring in this case must be

Therefore, the mass that must be added is

Learn more about period:
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