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Question
The ear canal is an open-closed tube for sound waves. A person has ear canal 3 cm long. Sound speed in the ear is 350 m/s. The lowest resonance frequency in the ear canal is _____ Hz.
An ambulance with its siren at frequency 700 Hz is racing down the highway at 50m/s, What is the wavelength of sound in front of the ambulance
From far away, any charge distribution with a net charge behaves more or less like a point charge. Consider two thin disks, each of radius 2.5 cm. What is the electric force between the disks
If you treat an electron as a classical spherical object with radius 2.00 x 10-17 meter , find what angular speed is necessary to produce a spin angular momentum of magnitude
Determine the magnetic force on a 3.50 meter current carrying wire that is parallel to the field lines of a 2.30 T magnetic field, when the wire draws a current of 2 Amp
A cart on a horizontal, linear track has a fan attached to it. The cart is positioned at one end of the track, and the fan is turned on. Find the net force exerted on the cart-fan combination
A 5.4ft -ft-tall girl stands on level ground. The sun is 30? above the horizon. How long is her shadow
Determine the vertical component. when would a microphone at the other end first detect a disturbance.
a person 1.8m tall stands 0.74m from a reflecting globe in a garden. a. if the diameter of the globe is 18cm where is
A disk of radius R and uniform surface charge density σ liesin the xy plane with its axis coinciding with the z axis. Itrotates about its axis with angular velocity ω . Find Bat position z on the z axis. Evaluate for R = z = 5cm, σ= 2μc/m2 at 7200rpm..
which describes the electric potential and the electric field at a point due to a negatively charged particle?a the
Two trains approach each other on parallel tracks. how long (in seconds) will it be before they pass each other
The exhaust gases from a rocket engine can be assumed to behave as a perfect gas with a specific heat ratio of 1.3 and a molecular weight of 32.
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