If a wave has a wavelength of 13 meters and a period of 0.005, what's the velocity of the wave? a. 1,560 m/s b. 260 m/s c. 1,300 m/s d. 2,600 m/s

v = 2600 m/s

Explanation:

The velocity of the wave is given by:

v = λ / T

Where λ represents the wavelenght and T  the period. Then:

v = 13 / 0.005

v = 2600 m/s

Therefore, the velocity of the wave is: v = 2600 m/s, which is option D.

see the picture for the vector

the magnitude of the vector by pythagorean theorem

r = √( (-10)^2 + (3)^2 ) = √109

magnitude = √109 units

the direction angle between vector and x-axis is

tan^(-1)(3/10) = 16.699

so the direction is approximately 16.7 degrees north of west