In the figure, an electron with an initial kinetic energy of 3.80 keV enters region 1 at time t = 0. That region contains a uniform magnetic field directed into the page. with magnitude 0.00540 T. The electron goes through a half-circle and then exits region 1, headed toward region 2 across a gap of 30.0 cm. There is an electric potential difference AV = 1200 V across the gap, with a polarity such that the electron's speed increases uniformly as it traverses the gap. Region 2 contains a uniform magnetic field directed out of the page, with magnitude 0.0189 T. The electron goes through a half-circle and then leaves region 2. At what time t does it leave? Number n Units s v In a certain cyclotron a proton moves in a circle of radius 0.450 m. The magnitude of the magnetic field is 1.80 T. (a) What is the oscillator frequency? (b) What is the kinetic energy of the proton? {a) MNumber 2.74E7 Units In the figure the ideal batteries have emfs $1 = 20.3 V, $2 = 9.10 V, and $3 = 4.70 V, and the resistances are each 1.70 0. What are the (a) size and (b) direction (left or right) of current in? (c) Does battery 1 supply or absorb energy, and (d) what is its power? (e) Does battery 2 supply or absorb energy, and (f) what is its power? (8) Does battery 3 supply or absorb energy, and (h) what is its power? 96 WV (a) Number 6.23 Units A (b) left (c) supply (d) Number 126.46 Units W (e) supply (f) Number 18.68 Units W (g) supply (h) Number 6171 Units WIn the figure $1 = 3.39 V, $2 = 1.07 V, R1 = 4.03 0, R2 = 2.72 0, R3 = 5.53 0, and both batteries are ideal. What is the rate at which energy is dissipated in (a) R1 (b) R2, and (c) R3? What is the power of (d) battery 1 and (e) battery 2? Rig (a) Number 0.8401 Units W (b) Number 0.0845 Units W (c) Number 0.4341 Units W (d) Number -1.5478 Units W (e) Number 0.1886 Units W