Answer:
error code 0xc00000e9 10023365zxzfaw16~4378
Explanation:
Answer:
-0.503
Explanation:
Z-score is expressed as:
Z-score = x - μ/σ
Given the following
x = 28.5413
μ = 30
σ = 2.9
Z-score = 28.5413-30/2.9
Z-score = -1.4587/2.9
Z-score = -0.503
Hence the z-score for the distribution is -0.503
At the bottom of the circle, the ball is being pulled upward by tension in the rope and downward by its own weight, so that the net force on it is
∑ F = 450 N - (0.75 kg) g = (0.75 kg) a
where a is centripetal acceleration. At this maximum tension, the ball has a maximum centripetal acceleration of
a = (450 N - (0.75 kg) g) / (0.75 kg) = 590.2 m/s²
Then its maximum tangential speed v is such that
a = v² / (1.0 m)
⇒ v = √((1.0 m) a) ≈ 25 m/s
