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A wire with mass 85.0 is stretched so that its ends are tied down at points 82.0 apart. The wire vibrates in its fundamental mode with frequency 70.0 and with an amplitude of 0.700 at the antinodes. Found that v=115 m/s Compute the tension of the wire?
A standard 100 W (120 V) lightbulb contains a 7.70cm-long tungsten filament. What is the diameter of the filament
A commercial airliner is undergoing its initial ascent while the pilot maintains a cabin environment of T = 23C, r = 0.35, and p = 880 hPa. At the 670 hPa level an exit door ruptures and the cabin pressure rapidly decompresses (glad i'm not in this p..
A bullet of mass 30 g collides completely inelastically with a ballistic pendulum of mass 2.5 kg. Calculate the velocity of the bullet right before it collides with the pendulum
The electric field points due east and has a magnitude of 4.3 105 N/C. The mass of the electron is 9.11 10-31 kg and that of the proton is 1.67 10-27 kg. Both the proton and electron have charge magnitudes of 1.60 10-19 C.
You may have observed that water waves advancing toward the shore have their wavefornts almost always parallel to the shoreline, independent of the direction of the wind. Nothing the fact that the velocity of waves in water decreases as the depth of ..
A +44 nC charge is placed on the z- axis at (0,0,5 cm). A grounded conducting plane fills the x-y plane where z=0. A) Find the surface charge charge density on the conducting plane at the origin.
A parallel plate capacitor has square plates with sides of length 20 cm. The distance between the plates is 1 mm. What is the electric field between the plates
An air bubble has a volume of 1.50 cm3 when it is released by a submarine 100 m below the surface of a lake. What is the volume of the bubble when it reaches the surface
A river ?ows at a speed vr = 5.85 km/hr with respect to the shoreline. A boat needs to go perpendicular to the shoreline to reach a pier on the river's other side, determine the width of the river
The polarizability of large atoms can be estimated by using the formula for the polarizability of a metal sphere, \(\alpha = 4\pi\epsilon a^{3}\), Estimate the induced dipole moment of an oxygen atom
A light bulb is placed 22.3 cm in front of a concave mirror. Calculate the focal length of the concave mirror
A standing wave has been created on a string of length 1.5m. The frequency of the wave is 25Hz. What is the wavelength of the standing wave
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