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Author Question: A 6.0 kg box is held at rest by two ropes that form 30 angles with the vertical. An external force F ... (Read 100 times)

lak

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on: Jul 29, 2018
A 6.0 kg box is held at rest by two ropes that form 30 angles with the vertical. An external force F acts vertically downward on the box. The force exerted by each of the two ropes is denoted by T.
 
  A force diagram, showing the four forces that act on the box in equilibrium, is shown in Figure 5.6. The magnitude of force F is 410 N. The magnitude of force T is closest to: A) 271 N
  B) 235 N
  C) 188 N
  D) 376 N
  E) 470 N

Question 2

If the maximum possible accuracy in measuring the energy of a particle increases, the maximum possible accuracy in measuring its lifetime will
 
  A) increase.
  B) decrease.
  C) not be affected.


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sierrahalpin

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

A

Answer to Question 2

B


lak

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Reply #2 on: Jul 29, 2018
TY


sierrahalpin

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Reply #3 on: Jul 29, 2018
You're welcome


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