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Assume a crane lifts a 900 kilogram wrecking ball 12 meters above a concrete slab.
105,840 Joules of potential energy are kept in the wrecking ball.
Now the ball is dropped. When the ball is 6 meters above the concrete slab, what is its potential energy in Joules?
Ans- 52,920 Joules
Find the lowest frequency for which destructive interference Two loudspeakers, A and B, are driven by the same amplifier and emit sinusoidal waves in phase. Speaker B is 2.00 m
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Ngan has a weight of 314.5 N on Mars and a weight of 833.0 N on Earth. a. What is Ngan's mass on Mars? b. What is the acceleration due to gravity on Mars, g Mars ?
Give the conditions needed for production and observation of interference pattern?
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