We apply the following equation
T = 2π * sqrt (L/g)
Where g is the gravity = 9.8 m/s^2
L is the longitude of the pendulum (Height of the tower)
T is the period. (T = 18s)
We find L.............> (T /2π)^2 = L/g
L = g*(T /2π)^2...........> L = 80.428 meters
Answer:
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Answer:
60N
Explanation:
According to the principle of lever: a torque can control if an object will spin or not.
The torque Iskander cause is 40*1.2=48 N-m
So for balanced, Danny should cause the same torque.
48/0.8=60, Danny weigh 60N.
Answer:
X-rays have shorter wavelengths (higher energy ) than UV waves and, generally, longer wavelengths (lower energy) than gamma rays.
Explanation:
