There are health problems associated with the recycling of dirty bottles
What will be an ideal response?
There are such costs, as indicated above. These costs are very similar to the health
costs of comparable jobs such as trash collection.
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The following exact conversion equivalents are given: 1 m = 100 cm, 1 in = 2.54 cm, and 1 ft = 12 in. If a computer screen has an area of 1.27 ft2, this area is closest to
A) 0.00284 m2. B) 0.0465 m2. C) 0.118 m2. D) 0.284 m2. E) 4.65 m2.
A polar bear starts at the North Pole. It travels 1.0 km south, then 1.0 km east, and then 1.0 km north to return to its starting point. This trip takes 45 min. What was the bear's average speed?
A) 0.00 km/h B) 0.067 km/h C) 4.0 km/h D) 5.3 km/h
Spaceman Speff orbits spherical asteroid X with his spaceship. To remain in a circular orbit at 421 km from the asteroid's center, he should maintain a speed of What is the mass of planet X? (G = 6.67 × 10-11 N ? m2/kg2)
A) 4.0 × 1019 kg B) 5.1 × 1017 kg C) 4.0 × 1016 kg D) 5.1 × 1014 kg
If an object is placed before a singe thin lens
A. real images are always enlarged. B. virtual images are always inverted. C. real images are always inverted. D. convex lenses never create virtual images.