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a spaceship whose rest length is 350m has a speed of .82c withrespect to a certain reference frame. a micrometeorite also withspeed .82c in this frame, passes the spaceship on an antiparalleltrack. how long does it take this object to pass the ship asmeasured from the ship.
A steel cylinder of radius 5.0cm and length 5.0cm is placed in end-to-end thermal contact with a copper cylinder of the same dimensions. If the free ends of the two cylinders are maintained at constant temperatures of 85 C (steel) and 23 C (copper), ..
A 74.6-kg bungee jumper jumps from a bridge. She is tied to a bungee cord whose unstretched length is 11.8 m, and falls a total of 34.0 m. Calculate the maximum acceleration experienced by the jumper
A 1590 kg satellite orbits the Earth at an altitude of 50.4 km. It is desired to increase the altitude of the orbit to 298 km, How much energy must be added to the system to effect this change in alti- tude
A certain species of ionized atoms produces an emission line spectrum according to the Bohr model, Find the next-to-the-longest wavelength in the series of lines
The work function for a metal surface is 5.22 eV. What is the largest wavelength of light in nm that will produce photoelectrons from this surface
A 77.5 kg bobsled is pushed along a hor- izontal surface by two athletes. After the bobsled is pushed a distance of 5.0 starting from rest, Find the magnitude of the net force on the bobsled
In a certain library the first shelf is 15.0 off the ground, and the remaining four shelves are each spaced 32.0 above the previous one. If the average book has a mass of 1.7 with a height of 18 , and an average shelf holds 25 books, how much work is..
A wheel is freely rotating at 85.0 rev/min and has a mass of 27.5 Kg and a radius of .7 m. If the wheel can be stopped in 7 seconds by using a towel and exerting an inward force of 55.0 N, what is the coefficient of kinetic friction between the wheel..
An oxygen molecule has a vibrational mode that behaves approximately like a simple harmonic oscillator with frequency 2.99 X 10^14 rad/s. Calculate the energy of the ground state
There are 3 force vectors acting upon a central mass of m = 2.5 kg. What is the magnitude and direction of the acceleration
Suppose you are in a high-speed boat moving at 18.0 m/s directly into approaching 1.10 m wavelength wave. What is the time interval between wave peaks hitting the boat
In a RLC circuit, the rms current is 7.00 A, the maximum voltage 230. V and the current lags behind the voltage by 53.0 degrees. Find the average power dissipated in the circuit
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