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An astronaut measures her mass by means of a device consisting of a chair attached to a large spring. The period of oscillation she undergoes when set into motion is used to determine her mass. If the spring constant is 1250 N/m and 27 seconds is required for her to undergo 10 full oscillations what is the mass of the astronaut and chair?
A small object with a momentum of magnitude 5.0 kg m/s approaches head on a large object at rest, what is the magnitude of the small objects momentum change in kg m/s
A star has a mass of 1.87 x 1030 kg and is moving in a circular orbit about the center of its galaxy. The radius of the orbit is 3.5 x 104 light-years, Determine the tangential speed of the star
A uranium nucleus with a charge of 92e can spontaneously decay into a thorium nucleus of charge 90e and an alpha particle of charge 2e. what is the initial potential energy
In an RLC series circuit, these three elements are connected in series: a resistor of 67.0 ?, a 33.0-mH inductor, and a 0.0480-F capacitor. Find the resonant frequency for the circuit
A solenoid 27.0 cm long and with a cross-sectional area of 0.510cm2 contains 410 turns of wire and carries a current of 70.0 A, Calculate the energy density in the magnetic field if the solenoid is filled with air
Capacitors C1 = 6.03 uF and C2 = 2.45 uF are charged as a parallel combination across a 298 V battery, Calculate the resulting charge on capacitor C2
suppose that a 70.0kg box is pulled by 400N firce at an angle of 30 degree to the horizontal. The coefficient of sliding friction is 0.500. find the acceleration of the box
A planet orbits a star, in a year of length 2.77 x 107 s, in a nearly circular orbit of radius 3.38 x 1011 m. determine the angular speed of the planet
A block of ice of mass 3.70kg is placed against a horizontal spring that has force constant k = 230N/m and is compressed a distance 2.70×10?2m. What is the speed of the block after it leaves the spring
A Cepheid variable has been found to have a period of 22 days, from this its luminosity is determined to be 2.8 x 1029 W, calculate the distance to the Cepheid
A 55 kg block of ice slides down a frictionless ramp that is 2.0 m long and 0.91 m high. Find the force exerted by the worker
In a science fiction movie, a 100 g base ball travelling with a speed of 60 m/s and an electron travelling at a speed of 1.2 x 10^8 m/s are approaching each other for a head-on collision
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