When a proton has a velocity v→= (2iˆ+3jˆ) × 10^6 m/s, it experiences a force F→=−( 1.28 ×10^−13 kˆ) N. When its velocity is along the z-axis, it experiences a force along the x-axis. What is the magnetic field? it experiences a force along the x-axis. What is the magnetic field? it experiences a force [...]