A positively charged particle which has 3 times the charge of the proton and a a mass 12 times the proton vertical enter a uniform magnetic field traveling toward the surfaces the surface of the earth enters a uniform magnetic field of magnitude 0.250 T oriented out of the paper. The particles path is bent in a semicircle of diameter 75.0 cm and leaves traveling away from the surface of the earth. A) Find the velocity of the particles as they enter the magnetic field B) Find the ratio of the magnetic force to the force exerted by gravity on the particles. Explain if in this problem it is a reasonable assumption to ignore gravity. For the circuit shown below C) Calculate the power dissipated by the 25Ω resistor. D) Calculate the current in all the branches of the circuit (1, 2, 3, 4,)
E) Calculate the potential across the 2.0Ω