4. Jed drops a 10 kg box off of the Eiffel Tower. After 2.6 seconds, how fast is the box moving? (Neglect air resistance.)
1 answer:
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Explanation:
(1) We have,
Wavelength of a wave is 2 meters
Frequency of a wave is 6 Hz
It is required to find the velocity of a wave. The velocity of a wave is given by :
So, the velocity of a wave is 12 m/s.
(2)
Number of waves passing are 100
Time taken to pass the wave is 5 seconds
The frequency of wave is given by total number of waves passing per unit time. So,
Frequency of a wave is 20 Hz.