As you know, the earth has an orbital period of 1.0 year at an orbital radius of 1.0 AU (astronomical unit, the average distance between the earth and the sun)
If a new "minor planet" were to be found in a circular orbit with radius 13 AU, what would be its orbital period?
47 years
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A rabbit trying to escape a fox runs north for 8.0 m, darts northwest for 1.0 m, then drops 1.0 m down a hole into its burrow. What is the magnitude of the net displacement of the rabbit?
A) 8.8 m B) 8.1 m C) 66 m D) 10 m
Two long parallel wires 45.6 cm apart are carrying currents of 13.0 A and 23.0 A in the same direction. What is the magnitude of the magnetic field halfway between the wires?
a. 8.77E–6 T b. 3.16E–5 T c. 1.14E–5 T d. 2.02E–5 T e. 4.39E–6 T
The horizontal acceleration of a projectile
a. is zero b. stays constant c. continuously increases d. continuously decreases e. sometimes decreases and sometimes increases