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Author Question: Astronaut Jill leaves Earth in a spaceship and is now traveling at a speed of 0.280c relative to an ... (Read 111 times)

fbq8i

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on: Jul 29, 2018
Astronaut Jill leaves Earth in a spaceship and is now traveling at a speed of 0.280c relative to an observer on Earth. When Jill left Earth, the spaceship was equipped with all kinds of scientific instruments, including a meter stick.
 
  Now that Jill is underway, how long does she measure the meter stick to be? A) 1.00 m
  B) 0.960 m
  C) 1.04 m
  D) 0.280 m
  E) 1.28 m

Question 2

Two men, Joel and Jerry, push against a car that has stalled, trying unsuccessfully to get it moving. Jerry stops after 10 min, while Joel is able to push for 5.0 min longer. Compare the work they do on the car.
 
  A) Joel does 75 more work than Jerry.
  B) Joel does 50 more work than Jerry.
  C) Jerry does 50 more work than Joel.
  D) Joel does 25 more work than Jerry.
  E) Neither of them does any work.
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carojassy25

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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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fbq8i

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Reply 2 on: Jul 29, 2018
Wow, this really help

elyse44

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Reply 3 on: Yesterday
Gracias!

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