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Two circular rods, one copper and one steel, are joined end to end. Each rod is 0.750 meter long and 1.50 centimeter in diameter. The combination is subjected to a tensile force with magnitude 4000Newton. For each rod, what are
a.) The strain and
b.) Elongation?
An astronaut has two objects that are identical in all respects,except that one is painted black and the other is painted silver. Initially, they are at the same temperature.
Prior to launching a stone from a sling, a Bolivian native whirls the stone at 3.0 revolutions per second around a circle of radius 0.75 m. What is the angular momentum of the stone relative to the center of the circle
question 2 unequal masses of 1kg and 2kg are connected by a string going over a clamped light smooth pulley.the system
A 50kg woman is in a rotor with a 2m radius, laying against theinner surface. The friction between the woman’s sweater andthe surface is μs = 0.5. (a) The rotor begins spinning with aconstant angular acceleration α, and when the rotor reachesenoug..
Water flowing out of a horizontal pipe emerges through a nozzle. The radius of the pipe is 2.5 cm, and the radius of the nozzle is 0.46 cm. determine the absolute pressure of the water in the pipe
A 450 lb boy pushes on a 300 lb box with a force of 125 lb. If the box slides across the floor with constant velocity, what is the net force on the box
a heavy stone of mass m is hung from the ceiling by a thin 8.25-g wire that is 65.0 cm long. when you gently pluck the
an l-r-c circuit has an inductance of 0.480 h a capacitance of 2.60times10-5 f and a resistance of r.a what is the
The speed of a longitudinal wave in a mixture of helium and neon at 300k was found to be 758m/s. what is the composition of the mixture
a parallel-plate capacitor has an area of 5.50 cm2 and the plates are separated by 1.06 mm with air between them. it
earths atmosphere is constantly bombarded by cosmic ray protons that originate somewhere in space. if the protons all
Some mass spectrometers use an electric field to give the incoming ions a certain known kinetic energy as they enter the magnetic field. What is the final kinetic energy of the ion just before it reaches the ion detector
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