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A 6.5m long wire with a mass of 55g is pulled tight with a tension of 7.5N. a. What is the velocity of a wave on this string? b. If a standing wave is produced on this wire, what would be the frequency of the second harmonic?
A helium-neon laser (λ = 632.8 nm) is used to calibrate a diffraction grating. find the spacing between adjacent grooves in the grating
Find the magnitude and direction of the vector represented by the following pairs of components. Write each vector in Fig. 2 in terms of the unit vectors i^ and j^.
A solenoid made from 600 turns of wire on a cylindrical form 2cm in diameter and 10 cm long has a current of 3 amps on it. Find the strength of the magnetic field on the axis of the coil
A U-shaped tube is partly filled with water and partly filled with a liquid that does not mix with water. what is the density of the liquid
Assume that the masses of the chains, pulleys, and ropes are negligible. Determine the tension in the rope when the crate is being lifted with constant speed.
a 2.28 kg mass connected to a spring completes one oscillation every three seconds. the motion has an amplitude of 1.5
Three moles of an ideal gas undergo a reversible isothermal compression at 21.5°C. During this compression, 1870 J of work is done on the gas. What is the change of entropy of the gas?
Your friend has a near point of 112 cm, and she wears contact lenses that have a focal length of 34.6 cm. How close can she hold a magazine and still read it clearly
A bullet with a mass of 4.1 gram and a speed of 650 m/s is fired at a block of wood with a mass of 9.6 x 10 kilogram. Obtain the speed of the bullet when it exits the block
You are on an airplane traveling 30° south of due west at 160.0 m/s with respect to the air. What is the heading of the plane with respect to the ground
A bullet of mass m = 13 g and velocity 270 m/s is shot into a block of wood that is firmly attached to the ground. How long did it take the bullet to come to rest once it entered the wood
A 1035 kg car carrying four 78 kg people travels over a rough "washboard" dirt road with corrugations 5.0 m apart which causes the car to bounce on its spring suspension. The car bounces with maximum amplitude while its speed is 16 km/h. The car now ..
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