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Author Question: A round coin has a diameter of 19.55 mm, a thickness of 1.55 mm, and a mass of 2.50 g. What is its ... (Read 138 times)

piesebel

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on: Jul 29, 2018
A round coin has a diameter of 19.55 mm, a thickness of 1.55 mm, and a mass of 2.50 g. What is its density?
 
  A) 5.37  103 kg/m3
  B) 21.5  103 kg/m3
  C) 1.34  103 kg/m3
  D) 2.68  103 kg/m3
  E) 1.86  10-4 kg/m3

Question 2

How do we know the shape of the universe?
 
  A) By observing distant stars during eclipses of the sun.
  B) By observing the light from distant stars and one star passes in front of another star.
  C) From the comparison between the pulsations coming from distant neutron stars.
  D) By triangulation measurements involving the distances to the sun and to the moon.
  E) By observation of the angular size of a typical wavelike disturbance in the cosmic microwave background.
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kardosa007

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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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piesebel

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

tkempin

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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