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A conducting bar with mass m and length L slides over horizontal rails that are connected to a voltage source. The voltage source maintains a constant current I in the rails and bar, and a constant, uniform, vertical magnetic field B fills the region between the rails (see the figure (Figure 1)).

Part A Find the magnitude of the net force on the conducting bar. Ignore friction, air resistance, and electrical resistance. Express your answer in terms of the variables 2300 A, 55 cm, and 0.88 T. V AXO ? F= Submit Request Answer
Part C If the bar has mass m, find the distance d that the bar must move along the rails from rest to attain speed v. Express your answer in terms of the variables 2300 A, 55 cm, v, 25 kg, and 0.88 T. ΡΟΙ ΑΣφ ? ? d = Submit Request Answer Dan
Part D it has been suggested that rail guns based on this principle could accelerato payloads into ourth orbit or beyond. Find the distance the bar must travel along the This if it is to reach the escape speed for the earth (11.2 km/s) Lot B-088 TT 2300 A, m = 25 kg, and L = 55 cm For simplicity, assume tho not force on tho object is equal to the magnetic force, as in parts and B, even though gravity plays an important role in an actual launch into space. Express your answer in meters. PO ALC ds m Submit Request Answer