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1) The speed of sound in air is around 346 ms-1 ( at room temperature and with low humidity).
What is the frequency of sound waves with the following wavelength:
(a) 2.00 cm ?
2) The speed of sound in air is around 346 ms-1 ( at room temperature and with low humidity).
What is the wavelength of sound waves with the following frequency:
(a) 18 000Hz ?
3) A pure tone of 500 Hz is played through two speakers one of which is damaged and not emitting the correct frequency. An astute listener notices a beat frequency of 20 Hz.
At what frequencies could the damaged speakers be emitting sound?
Four wooden beams, each of length 2a, are nailed together at their midpoints to form the support system shown. Assuming that only vertical forces are exerted at the connections, determine the vertical reactions at A, D, E, and H.
The reserve capacity (RC) of a car battery is defined as the number of minutes the battery can provide 25.0A of current at a potential difference of 10.5V.
You push your book 1.90 m along a horizontal table top with a horizontal force of 2.00 Newton. The opposing force of friction is 0.601 Newton. Compute the work done on the book by the friction force
The length of the mercury column at the ice point and steam point are 5.0 cm and 40.0cm respectively. What is the temperature of the liquid
According to one estimate, the first atomic bomb released an energy equivalent to 20 kilotons of TNT. how much uranium was lost through fission in this bomb
A Young's double-slit experiment contains a light source of two different wavelengths: 632.8 nm and 515 nm. If we assume each color only interferes with itself, (a) are there points where both maximums overlap?
An infinite line of positive charge lies along the y axis, with charge density 2.80 C/m. A dipole is located with its midpoint along the x axis at x = 30 centimeter. Obtain the magnitude of the net force exerted on dipole
A thin flat plate is placed in a uniform air flow in which the Mach number is 2.3 and the pressure is 10 kPa. The plate is set at an angle to the flow.
If the 1 Kg standard body has an aceleration of 2.00 m/s^2 at 20 degrees to the positive direction of an x axis, what is the net force in unit-vector notation
A 67? resistor, an 9.0?F capacitor, and a 36mH inductor are connected in series in an ac circuit. Calculate the impedance for a source frequency of 300 Hz
a rocket is launched and attains a speed of 5400 ms when 62000 m above the earth. if the engines shut down how much
The refractive index of a transparent material can be determined by measuring the critical angle when the solid is inair. If θc= 40.8° what is the index of refraction of the material?
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