It has been suggested that rail guns based on this principle could accelerate payloads into earth orbit or beyond. find the distance the bar must travel along the rails if it is to reach the escape speed for the earth (11.2 km/s). let b = 0.70 t , i = 1800 a , m = 21 kg , and l = 45 cm . for simplicity, assume the net force on the object is equal to the magnetic force, as in parts a and b, even though gravity plays an important role in an actual launch into space.
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Which feature of a heating curve indicates a change ofn state
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Two technicians are discussing a resistance measurement between the can-h and can-l wires. technician a says this measurement should be done with the ignition switch in the "run" position. technician b states that a measurement of 0 ohms indicates an open in the network. which technician is correct?
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Atruck driver is attempting to deliver some furniture. first, he travels 8 km east, and then he turns around and travels 3 km west. finally, he turns again and travels 13 km to his destination. what is the drivers total displacement?
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The direction of the current in an alternating current circuit remains constant. is direct. changes repeatedly. changes randomly.
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It has been suggested that rail guns based on this principle could accelerate payloads into earth or...
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