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A shaft 1.6 m long is 95 mm in diameter for the first 0.6 m of its length, 60 mm in diameter for the next 0.5 m of the length and 50 mm in diameter for the remaining length. The shaft carries two rotors at two ends, the first having a mass of 800 kg and 0.85 m radius of gyration located at the 95 mm diameter end and the second having a mass of 600 kg and 0.55 m radius of gyration located at the other end. Determine the location of the node and natural frequency of torsional vibration of the system. Take C = 80GN/m2.
An astronaut is tethered by a strong cable to a spacecraft. The astronaut and her spacesuit have a total mass of 104 , while the mass of the cable is negligible. What force does the cable exert on the astronaut
A 0.80 kg ball and a 4.20 kg ball are connected by a 78.0 cm long massless, rigid rod. The structure rotates about its center of mass at 250 rpm. What is the rotational kinetic energy of the structure?
A turtle ambles leisurely-as turtles tend to do-when it moves from a location with position vector r1,x = 1.01 m and r1,y = -2.99 m in a lettuce garden to another location, What are the components and the magnitude of the turtle\'s average velocity
A student stands at the edge of a cliff and throws a stone horizontally over the edge with a speed of 15.8 m/s. Find at what angle below the horizontal does it land
A jewelry maker has asked your glass studio to produce a sheet of dichroic glass that will appear red for transmitted light, how thick should the coating be
A car comes to a bridge during a storm and finds the bridge washedout. The driver must get to the other side, so he decides to tryleaping it with his car. The side the car is on is21.5 m above the river,
A charge of +Q = 80 nC is uniformly distributed along the upper half and a charge -Q = -80 nC is uniformly distributed along the lower half. Compute what the electric field at point P
A film of soapy water (n = 1.33) on top of a sheet of crown glass has a thickness of 220 nm. What wavelength is most strongly reflected if it is illuminated perpendicular to its surface? (This is the apparent color of the soapy film.)
In a cloud chamber experiment, a proton enters a uniform 0.250 T magnetic field directed perpendicular to its motion. How fast was the proton moving
2-information centers used for retail credit authorization are located in 2-different major population centers, which are separated from each other through a large zone of very little population.
Suppose one gallon of gasoline produces 1.1 multiplied by 108 J of energy, and this energy is sufficient to operate a particular car for 34 miles. An aspirin tablet has a mass of 270 mg. If the aspirin could be converted completely into thermal energ..
A frictionless spring of spring constant 500 N/m has one end attached to a vertical wall and the other end to a block of mass 3.0 kg, which is free to move in one dimension on a horizontal frictionless table. Find the amplitude and frequency of osc..
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