Answer: c) 0
Explanation:
Work tension is zero because in any infinitesimal time interval, the tension force is directly perpendicular to the displacement.
The need to quickly move through dark environments. <span />
Acceleration = (0-9) / 3 = -3m/s^2
To solve this exercise it is necessary to use the concepts related to Difference in Phase.
The Difference in phase is given by

Where
Horizontal distance between two points
Wavelength
From our values we have,


The horizontal distance between this two points would be given for

Therefore using the equation we have




Therefore the correct answer is C.
Question; what causes earthquakes?
Answer; what causes earthquakes are mainly when rocks are underground and then suddenly break along a fault.