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Author Question: A camera used for aerial surveillance has a lens with a 30-cm maximum aperture and a 42-cm focal ... (Read 115 times)

jc611

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on: Jul 29, 2018
A camera used for aerial surveillance has a lens with a 30-cm maximum aperture and a 42-cm focal length.
 
  Assume light of 550-nm wavelength is used and that the resolution of the camera is limited solely by diffraction. What is the angular resolution of the camera at maximum aperture?
  A) 2.2 rad B) 1.6 rad C) 6.3 rad D) 3.2 rad E) 4.5 rad

Question 2

What buoyant force does a 0.60-kg solid gold crown experience when it is immersed in water? The density of gold is 19.3  103 kg/m3 and that of water is 1000 kg/m3.
 
  A) 3.0  10-5 N
  B) 3.0  10-4 N
  C) 3.0  10-2 N
  D) 0.30 N
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bbburns21

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Reply #1 on: Jul 29, 2018
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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jc611

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Reply #2 on: Jul 29, 2018
Both answers were spot on, thank you once again


bbburns21

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Reply #3 on: Jul 29, 2018
Great! Please up vote :D


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