A particle with a mass of 6.64×10^–27 kg and a charge of+3.20×10^–19

 1. A particle with a mass of 6.64×10^–27 kg and a charge of+3.20×10^–19 C is accelerated from rest through a potential difference of 2.45×10^6 V. The particle then enters a uniform1.60-T magnetic field. If the particle’s velocity is perpendicular to the magnetic field at all times, what is the magnitude of the magnetic force exerted on the particle?

2. Determine the currents in the resistors for the circuit. E1=25.0 V, E2= 6.0 V, E3= 6.0V, Ra= 6.0 ohms, Rb= 3.0 ohms, Rc= 5.0ohms, Rd= 10.0 ohms, Re= 6.0 ohms 

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