Amass m = 550 g is hung from a spring with spring constant k = 2.8 n/m and set into oscillation at time t = 0. a second, identical mass and spring next to the first set is also set into motion. at what time t should the second system be set into motion so that the phase difference in oscillations between the two systems is pi/2?

Aloop of wire is in a magnetic field such that its axis is parallel with the field direction. which of the following would result in an induced emf in the loop? choose all that apply. a loop of wire is in a magnetic field such that its axis is parallel with the field direction. which of the following would result in an induced emf in the loop? choose all that apply. moving the loop outside of the magnetic field region. spin the loop such that its axis does not consistently line up with the magnetic field direction. change the magnitude of the magnetic field. change the diameter of the loop