Part D 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 = 0.90 T I= 1600 A , m 21 kg, and L = 46 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. Express your answer using two significant figures. d = 1.91 10° m
Part D 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 = 0.90 T I= 1600 A , m 21 kg, and L = 46 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. Express your answer using two significant figures. d = 1.91 10° m
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Transcribed Image Text:<Homework 7 - Magnetic Field and Forces
Problem 27.65
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)).
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Transcribed Image Text:Part D
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 = 0.90 T, I= 1600 A , m = 21 kg, and L = 46 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.
Express your answer using two significant figures.
d= 1.91 10°
m
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