In a world cup soccer match, juan is running due north toward the goal with a speed of 7.60 m/s relative to the ground. a teammate passes the ball to him. the ball has a speed of 12.9 m/s and is moving in a direction of 31.4° east of north, relative to the ground. a. what is the magnitude of the ball's velocity relative to juan? b. what is the direction of the ball's velocity relative to juan?

Select light for the type of wave, adjust the wavelength so that the light is red, and increase the amplitude of the light to the max. then, select the start button at the source location to begin producing the waves. light is a form of electromagnetic wave, containing oscillating electric and magnetic fields. the wave amplitude detector mentioned above shows how the electric field oscillates in time at the location of the probe. the amplitude of the wave at the location of the probe is equal to the maximum electric field measured. how does the amplitude of the wave depend on the distance from the source?