A refrigerator is actually a ________ (two words) running in reverse.
Fill in the blank(s) with the appropriate word(s).
heat engine
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A 1-centimeter cubed sugar cube scaled up by a factor of 10 has a volume of
A) 10 cm3. B) 100 cm3. C) 1000 cm3. D) none of the above
Energy to support an origin of life in a Europan ocean would probably come from
A) deep-sea volcanic vents B) sunlight filtering through the ice C) meteoroid impacts on the surface D) heat generated from Jupiter's magnetic field
A car traveling at a steady 20 m/s rounds an 80-m radius horizontal unbanked curve with the tires on the verge of slipping
What is the maximum speed with which this car can round a second unbanked curve of radius 320 m if the coefficient of static friction between the car's tires and the road surface is the same in both cases? A) 160 m/s B) 80 m/s C) 70 m/s D) 40 m/s E) 30 m/s
A 35-mm camera equipped with a 95 mm focal length lens is used to photograph a tree that is 8.0 m tall. A 32 mm high image of the tree on the film is needed
The required distance, between the tree and the camera lens, to take the photograph is closest to A) 26 m. B) 27 m. C) 24 m. D) 25 m. E) 29 m.