You know that the frequency and wavelength of an oscillation are related by the velocity of the wave (Eq. 1). In standing waves, the wave velocities of the different harmonics are the same. Think about why this may be and explain in your notebook. (Hint: The wave velocity is dependent on the static properties of the oscillating object like string mass and tension)

An electron is ejected into a horizontal uniform e⃗ field at a parallel horizontal velocity of v0. assume the electron's initial position x0, initial velocity v0, time t, magnitude of electric field e, electron's mass m, and the magnitude of the electron's charge |e|. ignore the force that earth exerts on the electron. assume the e⃗ field is in the same direction as the initial velocity. part a define the equation for the electron's velocity. express your answer in terms of the variables v0, |e|, t, e, and m.