Spatial separation between two events. For the passing reference frames of Fig. 37-25, events A and B occur with the following spacetime coordinates: according to the unprimed frame, (x A , t A ) and (x B , t B ); according to the primed frame, (x' A , t' A ) and ( x' B , t' B ). In the unprimed frame, Δ t = t B − t A = 1.00 µs and Δx = x B − x A = 240 m. (a) Find an expression for Δ x' in terms of the speed parameter ß and the given data. Graph Ax 'versus ß for two ranges of ß: (b) 0 to 0.01 and (c) 0.1 to 1. (d) At what value of ß is Δ x' = 0?
Spatial separation between two events. For the passing reference frames of Fig. 37-25, events A and B occur with the following spacetime coordinates: according to the unprimed frame, (x A , t A ) and (x B , t B ); according to the primed frame, (x' A , t' A ) and ( x' B , t' B ). In the unprimed frame, Δ t = t B − t A = 1.00 µs and Δx = x B − x A = 240 m. (a) Find an expression for Δ x' in terms of the speed parameter ß and the given data. Graph Ax 'versus ß for two ranges of ß: (b) 0 to 0.01 and (c) 0.1 to 1. (d) At what value of ß is Δ x' = 0?
Spatial separation between two events. For the passing reference frames of Fig. 37-25, events A and B occur with the following spacetime coordinates: according to the unprimed frame, (xA, tA) and (xB, tB); according to the primed frame, (x'A, t'A) and (x'B, t'B). In the unprimed frame, Δt = tB− tA = 1.00 µs and Δx = xB− xA = 240 m. (a) Find an expression for Δx' in terms of the speed parameter ß and the given data. Graph Ax'versus ß for two ranges of ß: (b) 0 to 0.01 and (c) 0.1 to 1. (d) At what value of ß is Δx' = 0?
An L−R−C series circuit has R= 280 Ω . At the frequency of the source, the inductor has reactance XLL= 905 Ω and the capacitor has reactance XC= 485 Ω . The amplitude of the voltage across the inductor is 445 V . What is the amplitude of the voltage across the resistor and the capacitor? What is the voltage amplitude of the source? What is the rate at which the source is delivering electrical energy to the circuit?
A 0.185 H inductor is connected in series with a 98.5 Ω resistor and an ac source. The voltage across the inductor is vL=−(12.5V)sin[(476rad/s)t]vL.
Derive an expression for the voltage vR across the resistor.
Express your answer in terms of the variables L, R, VL (amplitude of the voltage across the inductor), ω, and t. What is vR at 2.13 ms ? Please explain all steps
A worker lifts a box under the following conditions:Horizontal distance (H): 30 cmInitial height (V): 60 cmVertical travel (D): 50 cmTorso rotation (A): 30°Frequency: 3 times/minute for 1 hourGrip: Good
Question:What is the RWL for this task?What does this value mean in terms of occupational safety?
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