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A 50-kg pilot comes out of a vertical dive in a circular arcsuch that at the bottom of the arc her upward acceleration is 8.5g.
(a) What is the magnitude of the force exerted by the airplane seaton the pilot at the bottom of the arc?
(b) If the speed of theplane is 345 km/hr, what is the radius of the circular arc?
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The energy of a simple harmonic oscillator could be doubled by increasing the amplitude by a factor of approximately
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An ideal refrigerator maintains a temperature of 8c inside it, whereas in the kitchen the temperature is 25c. find te energy ejected into the kitchen
If we observe a star's spectrum and find that the peak power occurs at the border between red and infrared light, what is the approximate surface temperature of the star
explain how would you evaluate much accountability for AIS security falls on management in a large and a small accounting firm.
A 72.0-kg log falls from a height of 27.0 m into a lake. If the log, the lake, and the air are all at 305 K, find the change in entropy of the air during this process
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If an object on a horizontal, frictionless surface is attached to a spring, displaced, and then released, it will oscillate. If it is displaced 0.180 m from its equilibrium position and released with zero initial speed, then after 0.950 s its disp..
Suppose a heat engine takes in 420 J of energy from a hot reservoir and performs 30 J of work in each cycle.
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