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In order to study the long-term effects of weightlessness, astronauts in space must be weighed (or at least "massed"). One way in which this is done is to seat them in a chair of known mass attached to a spring of known force constant and measure the period of the oscillations of this system. The 34.8 chair alone oscillates with a period of 1.05 , and the period with the astronaut sitting in the chair is 2.21.
a. Find the force constant of the spring
b. Find the mass of the astronaut.
A sky diver of mass 81.0 kg jumps from a slow-moving aircraft and reaches a terminal speed of 51.5 m/s. What is the acceleration of the sky diver when her speed is 30.0 m/s
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q1. a father m 92 kg and son m 44 kg are standing facing each other on a frozen pond. the son pushes on the father
In the Bohr model of the hydrogen atom, an electron moves in a circular path around a proton. The speed of the electron is approximately 2.19 106 m/s. Find the centripetal acceleration of the electron
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A jet plane at take-off can produce sound of intensity 9.90 W/m^2 at 30.3 m away. What power of sound does the jet produce at take-off
A uniform 1.7-kg rod that is 0.93 m long is suspended at rest from the ceiling by two springs, one at each end. Both springs hang straight down from the ceiling. The springs have identical lengths when they are unstretched. Their spring constants are..
A simple pendulum with mass m = 1.5 kg and length L = 2.41 m hangs from the ceiling, What is the magnitude of the radial acceleration as the pendulum passes through the equilibrium point
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