The induced magnetic field at radial distance 7.6 mm from the central axis of a circular parallel-plate capacitor is 2.2 × 107 T. The plates have radius 2.3 mm. At what rate is the magnitude of the electric field between the plates changing? Number i Units

A rocket zooms past the earth at v = 2.0 x 10 m/s. Scientists on the rocket have created the electric and magnetic fields shown in the figure. (Figure 1) Assume that B=0.60 T and E = 6.0x105 V/m. Figure B E 2.0 × 10 m/s 1 of 1 ▼ Part A What is the electric field strength measured by an earthbound scientist? Express your answer using two significant figures. VE ΑΣΦ Submit Part B Up Down O Left What is the direction of the electric field measured by an earthbound scientist? B = Request Answer Right Into the page Submit Out of the page Part C Stad Request Answer ? V/m What is the magnetic field strength measured by an earthbound scientist? Express your answer using two significant figures. VE ΑΣΦ LITER ? T

1. A magnetic field has a magnitude of 1.20 x 10 T, and an electric field has a magnitude of 4.70 x 10° N/C. Both fields point in the same direction. A positive 2.5 µC charge moves at a speed of 3.00 x 10° m/s in a direction that is perpendicular to both fields. Determine the magnitude of the net force that acts on the charge. N

A 68.0-cm-diameter cyclotron uses a 450 V oscillating potential difference between the dees. Part A What is the maximum kinetic energy of a proton if the magnetic field strength is 0.740 T? Express your answer with the appropriate units. Value Submit Part B μA Submit Units Request Answer IV—| ΑΣΦ 3 How many revolutions does the proton make before leaving the cyclotron? ? Request Answer ?