Estimate the number of dollar bills (15.5 cm) put end to end it would take to circle the earth (radius = 
a. 
b. 
c. 
d. 
e. 
b.
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What is the magnitude of the magnetic force on a charged particle (Q = 5.0 mC) moving with a speed of 80 km/s in the positive x direction at a point where Bx = 5.0 T, By = -4.0 T, and Bz = 3.0 T?
a. 2.8 N b. 1.6 N c. 1.2 N d. 2.0 N e. 0.4 N
A meteor shower is produced when
a. a large number of sporadic meteors are observed. b. Earth passes through the asteroid belt. c. massive particles are carried outward from the Sun by the solar wind and enter Earth's atmosphere. d. Earth passes through the orbital path of a comet. e. meteors cause condensation in the upper atmosphere that leads to early morning rains.
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Fill in the blank(s) with correct word