A 1.7 meter string produces a standing wave with 3 loops. A) what is the wave length? B) What is the frequency if the speed of the wave is 40 m/s? C) What is the wave length and frqency of the 1st harmonic.

grav forces affect all objects magnetic forces affect magnetic objects and electric currents

where is the photo and the answer choices?

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