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A variable-length air column is placed just below a vibrating wirethat is fixed at both ends. The length of the air column open at one end is graduallyincreased from zero until the first position of resonance isobserved at L = 34.0 cm. The wire is 120 cm long and is vibratingin its third harmonic. If the speed of sound in air is 340 m/s, what is the speed of transverse waves in the wire?
Calculate the edge length of a cube that has the same volume as a sphere of radius 4.0 cm. How much greater is the surface area of the cube than that of the sphere
A 40-g object connected to a spring with a force constant of 30 N/m oscillates with an amplitude of 8 cm on a frictionless, horizontal surface. Find the total energy of the system
A 34.1 kg child rides a Ferris wheel whose diameter is 18.3 m. When the ride is turning at a constant rate, Find the normal force the seat exerts on the child at the top of the ride
A high-pass RC filter is connected to an AC source with a peak voltage of 10.0 V. The peak capacitor voltage is 6.0 V. What is the peak resistor voltage
If you were on a spaceship traveling a 0.5c away from a star, at what speed would the starlight pass you
Two point charges each have a value of 30.00 x 10^-3 and are separated by a distance of .04m what is the electric field midway between the two charges
q1. two speakers one straight behind the other are each generating a 547-hz sound wave. what is the smallest separation
A thin, circular disc is made of lead and has a radius of 0.0350 cm at 20.0 °C. find out the change in the area of the circle if the temperature is increased to 625.0 °C. The coefficient of linear thermal expansion for lead is 29.0 x 10-6/C°.
How much power does a refrigerator use if connected to a 120 volt line and is said to draw as much power as light bulb that uses 1.67 A when connected to the same voltage
Two forces are applied to a block of mass M equal to 14 kg that sits on a horizontal, frictionless table. Find the x and y components of the second force
IF Earth's orbit were suddenly to become much more eccentric. keeping orbital semimajor axis as is, fixed at 1 AU, but let's imagine shifting both the Earth's perihelion and aphelion points by 0.9 AU, so that at perihelion we were only 0.1 AU from th..
There has long been an interest in using the vast quantities of thermal energy in the oceans to run heat engines. obtain the maximum possible efficiency of such a power plant
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