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A steel wire of length 5 meter and radius 0.3 millimeter is knotted to another steel wire of length 5 meter and radius 0.1 millimeter. The wires are stretched with a tension of 150 Newton. Find how long does a transverse wave pulse take to travel the distance of 10 meter from the beginning of the first wire to the end of the other? The density of steel is 7.8 x 103 kg/cubic meters.
what is the decrease in entropy of 25.0g of water that condenses on a bathroom mirror at 35C assuming no change in temp and given the latent heat of vap to be 2450KJ/KG
A railroad car of mass 24000 kg is moving with a speed of4.03m/s. It collides and couples with three other coupled railroadcars, each of the same mass as the single car and moving in thesame direction with an initial speed of 2.02m/s.
A projectile is shot from the edge of a cliff h = 105 m above ground level with an initial speed of v0 = 145 m/s at an angle of 37.0° with the horizontal. Find the maximum height above the cliff top reached by the projectile
Astronaut Benny travels to Vega, the fifth brightest star in the night sky, leaving his 35.0-year-old twin sister Jenny behind on Earth. Benny travels by a speed of 0.9996 c, and Vega is 25.3 light-years from Earth.
A hollow aluminium cylinder 20 cm deep has an internal capacity of 2.000 L at 20.00C. It is completely filled with turpentine and then warmed to 80.00C. (i) How much turpentine overflows? (ii) If it is then cooled back to 20.00 C, how far below th..
A block is attached to a ceiling by a spring of force constant k. When pulled down and released, what is the force constant k of the spring
A wheel rotates without friction about a stationary horizontal axis at the center of the wheel. What is the moment of inertia of the wheel
A toroidal shaped magnetic material of radius, a, and cross sectional radius R has a small transverse gap cut into it of length l. The toroid is uniformly overwound with a coil of N loops carrying a current I. Show that for a ferromagnetic materia..
A 7.5-m long extension cord carries a current of 12 amps. The cord is made of two wires, Find the force between those two wires
A .300kg mass attached to the end of a .75m string is whirled around on a smooth level table. If the maximum tension that the string can withstand is 250N, then what most tangential speed can the mass have if the string is not to break.
Object O1 is 13.7 cm to the left of a converging lens with a 11.9-cm focal length. What is the focal length of the second lens
Christian is making a Tyrolean traverse as shown in the figure. That is, he traverses a chasm by stringing a rope between a tree on one side of the chasm and a tree on the opposite side, 23m away.determine the tension force in the rope
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