The frequency produced by the string could be 437 Hz or it could be 443 Hz.
The frequency of the beats ... 3 Hz ... tells the piano tuner that
the difference between the fork and string frequencies is 3 Hz,
but it doesn't tell her which one is higher or lower.
Answer:
A)partly transverse and partly longitudinal
Explanation:
A longitudinal wave is one in which the motion of the particles of the medium is parallel to the direction of propagation of the wave, while in a transverse wave the motion of the particles is perpendicular. In this case the dominos move both horizontally and vertically. So, the disturbance along its line has both components.
Potential Energy= 24m * 14kg * 9.8N/kg = 3292.8J