A surface wave is a wave in which particles of the medium undergo a circular motion.
Answer:
|X| = 72 cm
Explanation:
We need to find the magnitude of vector X.
Vector Y = 21 cm
Vector Z = 75 cm
We know that, the magnitude of resultant vector is given by :

So, the value of magnitude of vector X is 72 cm
Complete Question
the maximum force a pilot can stand is about seven times his weight. what is the minimum radius of curvature that a jet plane's pilot, pulling out of a vertical dive, can tolerate at a speed of 250m/s?
Answer:
The value is 
Explanation:
From the question we are told that
The weight of the pilot is 
The maximum force a pilot can withstand is 
The speed is
Generally the centripetal force acting on the pilot is equal to the net force acting on the pilot i.e

Here N is the normal force acting on the pilot
Now

So
=> 
=> 
=> 