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The human ear canal is about 2.3 cm long. If it is regarded as a tube open at one end and closed at the eardrum, what is the fundamental frequency around which we would expect hearing to be most sensitive? (Take the speed of sound to be 349 m/s.)
In lab tests on a 9.25cm cube of a certain material, a force of 1375N directed at 8.50degree to the cube, as shown in the figure, causes the cube to deform through an angle of 1.24 degree. What is the shear modulus of the material?
In astronomy it is common to expose a photographic plate to a particular portion of the night sky for quite some time in order to gather plenty of light. Before leaving a plate exposed to the night sky, Matt decides to test his technique by exposi..
A 3.0x10 ² kg piano is being lifted at a steady speed from ground level straight up to an apartment 10 m above the ground. How much time does it take to lift the piano
Pulsars are neutron stars that emit X rays and other radiation insuch a way that we on Earth receive pulses of radiation from thepulsars at regular intervals equal to the period that they rotate.Some of these pulsars rotate with periods as short a..
A generator with an rms voltage of 15\30V is connected in series to a resistor 3.25 kilo-ohm and a capacitor 3.50 microfarad. Using the frequency found in part A, find the average power consumed by this circuit
An electromagnetic wave in a vacuum has a maximum magnetic field amplitude of 5.67×10?7 T. find the maximum electric field amplitude of the wave
A fan blade rotates with angular velocity given by ?z(t)= ? ? ? t2, where ? = 5.45rad/s and? = 0.835 rad/s3. Calculate the angular acceleration as a function of time
A spring-loaded pellet gun is designed to fire 3.40 g projectiles horizontally at a speed of 39.0 m/s. What maximum force is required to load the gun
orbiting the earth with a 6.5 meter primary mirror it will utilize a camera that is able to take infrared images. using
a 10 N force is applied to a wheel with a radius of 3 cmcausing an acceleration of 12 rad/s2. what is the rotational of inertia of the wheel
a mass m 16 kg is pulled along a horizontal floor with no friction for a distance d 7.9 m. then the mass is pulled up
A charge of +3.3 micro-Coulombs is placed in a capacitor without a dielectric. It starts from rest and accelerates toward the negative plate. After it has traveled 309.2 cm, it is moving at 7.2 x 103 m/s.
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