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Author Question: A race car circles 10 times around a circular 8.0-km track in 20 min. Using SI units (a) what is its ... (Read 63 times)

EY67

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on: Jul 29, 2018
A race car circles 10 times around a circular 8.0-km track in 20 min. Using SI units (a) what is its average speed for the ten laps? (b) what is its average velocity for the ten laps?
 
  What will be an ideal response?

Question 2

You are riding in a spaceship that has no windows, radios, or other means for you to observe or measure what is outside.
 
  You wish to determine if the ship is stopped or moving at constant velocity. How can you do this?
  A) You can determine if the ship is moving by lying down and measuring your height. If you are shorter than usual, the ship is moving.
  B) You should give up because you have taken on an impossible task
  C) You can determine if the ship is moving by checking your precision time piece. If it's running slow, the ship is moving.
  D) You can determine if the ship is moving by determining the apparent velocity of light in the spaceship.
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bitingbit

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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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EY67

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Reply 2 on: Jul 29, 2018
Excellent

chereeb

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Reply 3 on: Yesterday
Gracias!

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