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Use information from Table 16.2 to answer the following questions about sound in air. At 20oC the bulk modulus for air is 1.42 X 105 Pa and its density is 1.20 kg/m3. At this temperature, what are the pressure amplitude fm Pa and atm) and the displacement amplitude (in m and run)
(a) For the softest sound a person can normally hear at 1000 Hz and
(b) For the sound from a riveter at the same frequency?
(c) How much energy per second does each wave deliver to a square 5.00 mm on a side?
A 350kg piano slides 3.8m down a 33^\circ incline and is kept from accelerating by a man who is pushing back on it parallel to the incline (see the figure(Figure 1) ). The effective coefficient of kinetic friction is 0.35.
An instrument is thrown upward with a speed of 15 m/s on the surface of planet X where the acceleration due to gravity is 2.5 m/s2 and there is no atmosphere. How long does it take for the instrument to return to where it was thrown?
A pair of oppositely charged parallel plates are separated by a distance of 5 cm with a potential difference of 550 V between the plates. A proton is released from rest at the positive plate at the equal time that an electron is released from rest..
A 1.80x10^2 kg piano is being lifted at a steady speed from ground level straight up to an apartment 18.00 m above the ground. The crane that is doing the lifting produces a steady power of 4x10^2 W. How much time does it take to lift piano.
The distance between 2 slits (d=0.155 mm) and a screen is 1.54 m. If the spacing between the 2nd order bright fringe and the 3rd order dark fringe is 3.50 mm obtain the wavelength of the light
A 60 kilogram and a 90 kilogram skydiver jump from an airplane at an altitude of 6000 meter, both falling in the pike position. Find how long will it take for each skydiver to reach the ground
A Helmholtz coil is used to generate a uniform magnetic field. Calculate the magnitude and the direction of magnetic field
A single slit is .5mm wide and is illuminated with monochromatic light of a wavelength 400 nm. A screen is 5 meters from the slit. Find the first and second bright spot above the central bright spot.
A string on a musical instrument is held under tension T and extends from the point x = 0 to the point x = L. The string is overwound with wire in such a way that its mass per unit length µ(x) increases uniformly from µ0 at x = 0 to µL at x = L.
A 9.0 V battery is connected across two large parallel plates that are separated by 4.5 mm of air, creating a potential difference of 9.0 V between the plates. What is the electric field in the region between the plates
Electrons are accelerated through a voltage difference of 175 kV inside a high voltage accelerator tube. What is the final kinetic energy of the electrons
Riders on the Power Tower are launched skyward with an acceleration of 4g, after which they experience a period of free fall. What is a 60 kg rider's apparent weight during the launch
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