Mechanical (sound) waves are unable to travel through a vacuum, such as through space, but radio waves are transmitted to Earth
2 answers:
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To solve this problem it is necessary to address the concepts related to Torque as a function of the force and distance where it is applied and the moment of inertia from which the torque, moment of inertia and angular acceleration are related.
By definition the torque is defined as
Where,
F = Force
r = Radius
For our values we have:
Consequently the calculation of the moment of inertia would then be given by the relationship
Replacing with our values
The moment of inertia of the boxer's forearm
Answer:
C) 0.00026 Hz
Explanation:
- In any wave, there exists a fixed relationship between the speed v, the frequency f and the wavelength λ, as follows:
- Replacing by the givens in (1), and solving for f, we get:
- Converting the units to Hz (1/sec), we get:
- The answer C. is the right one.