Asteroid 433 Eros is one of the largest near-Earth asteroids. For purposes of this problem, assume it is spherical. The value of g at its surface is 0.0060 m/s2 and the escape velocity is only 10.1 m/s. What is the mass of Eros? G = 6.
67 x 10-11 Nm2/kg2. A) 2.3 1016 kg
B) 3.5 1012 kg
C) 6.5 1015 kg
D) 4.9 1014 kg
E) 6.7 1013 kg
Question 2
A transformer has a turns ratio of 10. The primary voltage and current are 120. volts and 20. Amperes. (a) What is the primary impedance (ratio of primary voltage to current)? (b) What is the secondary impedance?
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Problem