If NASA wants to put a satellite in a circular orbit around the sun so it will make 2.0 orbits per year, at what distance (in astronomical units, AU) from the sun should that satellite orbit? The earth's orbit is 1.0 AU from the sun
A) 7.6 AU
B) 0.63 AU
C) 0.50 AU
D) 2.0 AU
E) 0.71 AU
B
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Two parallel straight wires carry currents in the same direction. The magnetic forces between the wires are such that
A) the wires feel a clockwise torque. B) they are pulled in the direction of the wires. C) the wires repel each other. D) the wires attract each other.
At what speed would a 100. meter long spaceship appear to be 60. meters long?
A) 2.4 × 103 Km/s B) 0.24 m/s C) 24. Mm/s D) 240. Mm/s E) 2.4 Gm/s
Kinetic energy is conserved in
a. an inelastic collision. b. an elastic collision. c. any collision where two objects rebound off each other. d. none of the above.
Consider the circuit shown above. Assume that the bulb filament has the same conductivity as the other wires. The numbers label various points inside the wires. Which graph best describes the following quantities as a function of position in the circuit? (Answer T and provide your own graph if you don’t think any of the above graphs are right.) The electric field magnitude