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How do you measure the mass of an astronaut in orbit? (You can't just use a scale!) For the Skylab program, NASA engineers designed a Body Mass Measuring Device. This is essentially a chair of mass m mounted on a spring wiwth a carefully measured spring constant k=605.6N/m. The other end of the spring is connected to the Skylab itself, which has a mass much larger than the astronaut or the chair and so reminas essentially fixed as the astronaut oscillates. The period of oscillation of the empty chair is measured to be .90149s. When an astronaut is sitting in the chair, the period is 2.12151s. What is the mass of the astronaut? Please describe the reasoning.
In a hot star, because of the high temperature, an atom can absorb sufficient energy to remove several electrons from the atom. Find the wavelengths of the next three spectral lines nearest to the line of longest wavelength
A softball of mass 0.220kg that is moving with a speed of 8.5m/s collides head-on and elastically with another ball initially at rest. Calculate the mass of the target ball
An asteroid is in a nearly circular orbit of radius 5.668 AU about the Sun. Determine the period of this asteroid
A passenger car traveling due east at 53.6 m/s passes a truck traveling due east at 13.4 m/s. What is the frequency heard by the driver of the car
A scaffold of mass 57 kg and length 6.5 m is supported in a horizontal position by a vertical cable at each end. What is the tension in the cable closer to the painter
A 7.38- g bullet is moving at 670.00 m/s as it leaves the 0.62- m-long barrel of a rifle. What is the average force on the bullet
The astronaut pushes on the satellite, giving it a speed of 0.25 directly away from the shuttle. Seven-and-a-half seconds later the astronaut comes into contact with shuttle.
A rigid tank contains 1.30 moles of an ideal gas. Determine the number of moles of gas that should be withdrawn from the tank to lower the pressure of the gas from 24.5 atm to 4.40 atm. Assume volume of the tank and the temperature of the gas rema..
A ball m=1kg rolling without slipping on a flat surface with v=.1m/s strikes the wall after which v=.08m/s
Determine the maximum and minimum of the absolute value of the magnetic flux through a large triangular wire loop that has three equal sides of 1.85 m
A 280g ball is dropped from a height of 1.6m , bounces on a hard floor, and rebounds to a height of 1.1m. What maximum force does the floor exert on the ball
A pilot releases a package from a plane flying horizontally at a constant speed. When the package reaches the ground below, what is the horizontal location of the plane
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