A 6.0 kg box is held at rest by two ropes that form 30 angles ...

[lak]

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.

[sierrahalpin]

Answer to Question 1

A

Answer to Question 2

B

[lak]

TY

[sierrahalpin]

You're welcome