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Author Question: The objective fstronomical telescope have focal lengths of 320 cm and 4.0 cm, respectively. The ... (Read 13 times)

cool

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on: Jul 29, 2018
The objective fstronomical telescope have focal lengths of 320 cm and 4.0 cm, respectively.
 
  The telescope is used to view Neptune and the final image is set at infinity. The diameter of Neptune is 4.96  107 m, and its distance from Earth at the time of observation is 4.4  1012 m. What is the angle (in milliradians) subtended by the final telescopic image of Neptune?
  A) 1.3 mrad B) 0.90 mrad C) 1.5 mrad D) 1.7 mrad E) 1.1 mrad

Question 2

A simple pendulum and a mass oscillating on an ideal spring both have period T in an elevator at rest. If the elevator now moves downward at a uniform 2 m/s, what is true about the periods of these two systems?
 
  A) Both periods would remain the same.
  B) Both periods would increase.
  C) Both periods would decrease.
  D) The period of the pendulum would increase but the period of the spring would stay the same.
  E) The period of the pendulum would decrease but the period of the spring would stay the same.
Physics ¦ Walker ¦ 5th Edition
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kalskdjl1212

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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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cool

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Reply 2 on: Jul 29, 2018
YES! Correct, THANKS for helping me on my review

nguyenhoanhat

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Reply 3 on: Yesterday
Wow, this really help

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