Convert 1.2 × 10-3 to decimal notation
A) 1.200
B) 0.1200
C) 0.0120
D) 0.0012
E) 0.00012
D
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A pole-vaulter holds out a 5.5kg, 4.75m pole horizontally in front of him. Assuming the pole is uniform in construction, and that he holds the pole with one hand at the very end, and one hand 0.75m from the end, what is the torque applied by the Earth to the pole?
A. 40N B. 88N C. Not enough information is given D. 128N
There are no auroras on Venus because it
A) is too hot. B) lacks atmospheric oxygen. C) lacks a strong magnetic field. D) lacks strong winds.
Which of the following statements about the celestial equator is true at all latitudes?
A) It extends from your horizon due north, through your zenith, to your horizon due south. B) It cuts the dome of your local sky exactly in half. C) It represents an extension of Earth's equator onto the celestial sphere. D) It lies along the band of light we call the Milky Way. E) It extends from your horizon due east, through your zenith, to your horizon due west.
Wave frequency could be given in
a. 1/s. b. s-1 c. Hz. d. any of these.