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Author Question: As the velocity of an inertial frame of reference increases with respect to a stationary observer, ... (Read 104 times)

karlynnae

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on: Jul 29, 2018
As the velocity of an inertial frame of reference increases with respect to a stationary observer, Einstein's theory of special relativity predicts that the length of an object, measured in the dimension parallel to the motion of the reference frame
 
  , will A) decrease.
  B) remain unchanged.
  C) increase.
  D) increase at first but start to decrease when the speed of the reference frame equals half the speed of light.
  E) decrease at first but start to increase when the speed of the reference frame equals half the speed of light.

Question 2

An 85.0-kg man climbs onto a 900-kg car with worn out shock absorbers and whose springs have an effective force constant of 125 kN/m. As he drives along, he hits a bump, and this starts the car oscillating with simple harmonic motion.
 
  What is the smallest amplitude of the oscillations that will cause him to bounce from his seat? A) 7.06 cm
  B) 7.73 cm
  C) 7.88 cm
  D) 8.95 cm
  E) 8.42 cm


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josephsuarez

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Reply #1 on: Jul 29, 2018
Answer to Question 1

A

Answer to Question 2

B


karlynnae

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Reply 2 on: Jul 29, 2018
Gracias!

Mochi

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Reply 3 on: Yesterday
Wow, this really help

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