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Author Question: A spaceship approaches Earth with a speed 0.50c. A passenger in the spaceship measures his heartbeat ... (Read 63 times)

asmith134

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on: Jul 29, 2018
A spaceship approaches Earth with a speed 0.50c. A passenger in the spaceship measures his heartbeat as 70 beats per minute. What is his heartbeat rate according to an observer that is at rest relative to Earth?
 
  A) 73 beats per minute
  B) 61 beats per minute
  C) 75 beats per minute
  D) 65 beats per minute
  E) 69 beats per minute

Question 2

A jet plane is launched from a catapult on an aircraft carrier. In 2.0 s it reaches a speed of 42 m/s at the end of the catapult. Assuming the acceleration is constant, how far did it travel during those 2.0 s?
 
  A) 16 m
  B) 24 m
  C) 42 m
  D) 84 m
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Animal_Goddess

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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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asmith134

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

xiaomengxian

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Reply 3 on: Yesterday
Gracias!

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