Due to the nature of this problem, do not use rounded intermediate values-including answers submitted in WebAssign-in your calculations. 3 4 Find the currents flowing in the circuit in the figure below. (Assume the resistances are R₁ =6, R₂ = 20, R₂ = 10 N, R₁ = 8, r₁ = 0.75 0, r2=0.50, 3 × A × A I, = 3.78 12 13 = 2.28 = 1.5 × A R₁ b a R₁₂ w C 1, 12 13 R₂ E3 12 V E₁ 18 V g Ez 3.0 V 12 Ea شرة R₁ e 24 V d = 0.25 0, and 4 = 0.5 0.)

In the circuit shown below Ɛ = 66.0 V, R5 = 4.00 £2, R3 = 2.00 N, R₂ = 2.20 N, I5 = 11.41 A, I = 10.17 A, and d I₁ = 6.88 A. Find the current through R2 and R3, and the values of the resistors R₁ and R. (Due to the nature of this problem, do not use rounded intermediate values—including answers submitted in WebAssign-in your calculations.) 12 = 8.12 A RA = -1.24 Based on the known variables, which two junctions should you consider to find the current I3? A 9.59 Which loop will give you an equation with just R₁ as the unknown? Did you follow the sign convention for the potential difference across each element in the loop? 6.49 Which loop will give you an equation with just R as the unknown? Did you follow the sign convention for the potential difference across each element in the loop? N R₁ ww R₂ www R4 ww 14 15 www R5 www R3

Certain types of particle detectors can be used to reconstruct the tracks left by unstable, fast-moving sub-atomic particles. Assume that a track with a length of L=2.97 mm in the laboratory frame of reference has been observed. Further assume that you determined from other detector data that the particle moved at a speed of L=0.910 ⚫ c, also in the laboratory frame of reference. c denotes the speed of light in vacuum. What proper lifetime would you determine for this particle from the data given? T= 4.0 S