Calculate Speed & Induced EMF of Spacecraft

AI Thread Summary
To calculate the speed of the spacecraft in a circular orbit around a pulsar, the gravitational force must be equated to the centripetal force. The gravitational force can be determined using the mass of the pulsar and the radius of the orbit. The induced electromotive force (emf) can be computed using the formula emf = Blv, where B is the magnetic field strength, l is the length of the spacecraft, and v is the velocity. The discussion highlights confusion regarding which equations and values to apply for determining velocity and gravitational force. Understanding these concepts is crucial for solving the problem effectively.
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Homework Statement


A spacecraft is in a circular orbit of radius 3.1 X 10^4 km around a 1.9 X 10^30 kg pulsar. The magnetic field of the pulsar at that radial distance is 1.4 X 10^2 T directed perpendicular to the velocity of the spacecraft . The spacecraft is 0.20 km long with a radius of 0.040 km and moves counterclockwise in the xy-plane around the pulsar
What is the speed of the spacecraft ?
Compute the induced emf.

Homework Equations


emf=Blv



The Attempt at a Solution


Not sure which information I need to use from the problem in order to determine the velocity?
 
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What is the centripetal on the satellite?
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