What temperature has the Big Bang cooled to by now?
A) 1.4 K
B) 5,800 K
C) about 3,000 K
D) about 300 K
E) just over 2.7 K
E
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What is the circular velocity of an object orbiting Earth at a distance of 100,000 km from Earth's center? Hint: ; G = 6.67 10^-11 m3/s2/kg
a. 0.2 m/s b. 2 m/s c. 20 m/s d. 200 m/s e. 2,000 m/s
Using the information in figure 1.23 what is the distance to the nearest CM in the triangle at the right?
A. 26 cm B. 20 cm C. 17 cm D. 15 CM
A rod (length = 2.0 m) is uniformly charged and has a total charge of 40 nC. What is the magnitude of the electric field at a point which lies along the axis of the rod and is 3.0 m from the center of the rod?
A. 40 N/C B. 45 N/C C. 24 N/C D. 90 N/C E. 36 N/C
The fourth planet from the Sun is ______________
Fill in the blank(s) with correct word