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Whenever two Apollo astronauts were on the surface of the Moon, a third astronaut orbited the Moon. Assume the orbit to be circular and 880 km above the surface of the Moon, where the acceleration due to gravity is 0.738 m/s2. The radius of the Moon is 1.70 106 m.
(a) Determine the astronaut's orbital speed.
(b) Determine the period of the orbit.
Two long, coaxial cylindrical shell conductors carry equal and opposite charges. The inner shell has radius "a" and charge +q, and the outer shell had radius "b" and charge -q. Find the potential difference between the shells
In one day, a 90kg mountain climber ascends from the 1520m level on a vertical cliff to the top at 2360m, What is her change in gravitational potential energy on the first day
What is magnitude of the electric field
A64-kg astronaut is in space, far from any objects that would exert a significant gravitational force on him. How fast is the astronaut moving after he throws the mallet
A train sounds its horn as it approaches an intersection. The horn can just be heard at a level of 54 dB by an observer 10 km away. What is the average power generated by the horn
A long straight wire of diameter 2.33 mm and length 5.28 meters has a charge of 0.0388 coulomb uniformly distributed along it. Determine the flux through the side of the cylinder
Determine the angular acceleration of the pulleys and the tension T in the cord supporting the 612 Kg mass when it is released from rest.
A 0.015 kgrecord with a radius of 15 cm rotates with an angular speed of 33 1/3 rpm. What is the fly's angular momentum
A rifle with a barrel length of 59 cm fires a 8 g bullet with a horizontal speed of 350 m/s, What resistive force (assumed to be constant) does the wood exert on the bullet
A load of bricks is being lifted by a crane at the steady velocity of Vo (= 5 m/s) when one brick falls of H (= 5m) above the ground. What is the greatest height above the ground that the brick reaches
The Big Bang theory states that the beginning of the universe was accompanied by a huge burst of photons. Calculate the peak wavelength of this radiation
When an electric circuit is being assembled, a common practice is to twist together two wires carrying equal currents in opposite direction
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