Physics, 28.01.2020 19:05 darkcrystal463
An object is placed 60 cm in front of a convex lens with a focal length of 20 cm. where does the image form?
a. 15 cm
b. 30 cm
c. -15 cm
d. -30 cm
Answers: 2
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Ammonia enters the expansion valve of a refrigeration system at a pressure of 10 bar and a temperature of 18oc and exits at 6.0 bar. the refrigerant undergoes a throttling process. determine the temperature, in oc, and the quality of the refrigerant at the exit of the expansion valve.
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What word chemical equation describes cavendish’s experiment with zinc?
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An object is placed 60 cm in front of a convex lens with a focal length of 20 cm. where does the ima...
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