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A steel wire (8 m long and 60 g mass) is clamped between two parallel walls. Two equal masses are hung from the wire at equal distance from each end. The left and right sections of the wire are 2m long and make an angle of 40 degree with each wall and the middle section is 4 m long and is horizontal. A wave pulse travels along the wire from one end of the mid horizontal section to the other end of the section in 24.0 ms. Determine the tension in the left (and right) inclined sections of the wire.
A soap bubble strongly reflects light of 463nm, wavelength, if the index of refraction of the film is 1.35, what is the thinnest thickness the soap film can be
Two blocks are connected by a lightweight, flexible cord that passes over a single frictionless pulley. If m1 >> m2, find the acceleration and tension of each block
In an action movie, the villain is rescued from the ocean by grabbing onto the ladder hanging from a helicopter. what was the speed at which the helicopter was ascending
An object is placed to the left of a lens, and a real image is formed to the right of the lens. How far from the lens is the object
In a double-slit experiment, the slit spacing is 0.22m, the distance to the screen is 3.30m, and light of wavelength 662nm is used. What is the thickness of the polystyrene sheet
A 10-cm-diameter cylinder of helium gas is 30 cm long and at 20 C. The pressure gauge reads 120 psi.How many helium atoms are in the cylinder
A bicyclist is finishing his repair of a flat tire when a friend rides by with a constant speed of 3.23 m/s. What is his speed when he catches up
A crate rests on the flatbed of a truck that is initially traveling at 15 m/s on a level road. what is the minimum coefficient of friction between the crate and the truck that is required to keep the crate from sliding
A 7.50 g piece of iron at 100 C is dropped into 25.0g of water at 22.0 C. Assuming that the heat is lost by the iron equals the heat gained by the water, determine the final temperature of the iron/water system. Assume a heat capacity of water 4...
A 100 pF capacitor and a 400 pF capacitor are each charged to 2kV. By how much did the energy of the system change
A square loop of wire consisting of a single turn is perpendicular to a uniform magnetic field. What is the flux that passes through the circular loop
A particle is connected between two springs on a frictionless, horizontally level track. determine what is the mass of the particle
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