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A man enters a tall tower, needing to know its height. He notes that a long pendulum extends from the ceiling almost to the floor and that its period is 16.1 s. The acceleration of gravity is 9.8 m/s2 .
A) How tall is the tower?
Answer in units of m
B) If this pendulum is taken to the Moon, where the free-fall acceleration is 1.67 m/s2, what is its period there?
Answer in units of s
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q1. a 48-m length of wire is stretched horizontally between two vertical posts. the wire carries a current of 64 a and
Use the following values for mass and charge: an electron has mass me = 9.11×10-31 kg and charge -e, What is the kinetic energy of the electron in units of eV
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A rectangular air mattress is 2.10m long, 0.48m wide and 0.09 m thick. If it has a mass of 2.30 kg, what additional mass can it support in water.
Tarzan, who weighs 900N, swings from a cliff at the end of a 40.0 m vine that hangs from a high tree limb, What is the magnitude of Tarzan's acceleration
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Determine the magnitude when the force on the wire
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