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Two speakers spaced a distance 1.5 m apart emit coherent sound waves at a frequency of 680 Hz in all directions. The waves start out in phase with each other. A listener walks in a circle of radius one meter centered on the midpoint of the two speakers. At how many points does the listener observe destructive interference? The listener and the speakers are all in the same horizontal plane and the speed of sound is 340 m/s. [Hint: Start with determining the maximum path difference between the two waves at points on the circle.]
A paddle wheel frictionally adds thermal engery to 5.0 moles of an ideal monatomic gas in a sealed insulated container. The paddle wheel is driven by a cord connected to a falling object as shown in the drawing. How far has the 2.0kg object fallen..
Estimate the air pressure at the cloud base from the problem 1 assuming isothermal atmosphere with the average temperature between the cloud base and the surface
Geostationary satellites used for television, weather tracking, or defense purposes are satellites that remain stationary over one point on the equator, What must be the period of the satellite's orbit
You have a 1.5 m long copper wire. You want to make an N-turn current loop that generates a 2.4 mT magnetic field at the center, What will be the diameter of your coil
The amount of heat per second conducted from the blood capillaries beneath the skin to the surface is 260 J/s. The energy is transferred a distance of 1.8 × 10-3 m through a body whose surface area is 1.3 m2. Assuming that the thermal conductivity..
A laser light has a wavelength of 670 nanometers and the separation between the two first order diffraction minima is 11 cm. Calculate the slit width and slit separation
A block of mass 0.78 kg is suspended by a string which is wrapped so that it is at a radius of 0.069 m from the center of a pulley. Calculate the amount of energy dissipated up to that point
Which of these statements is true about circuit components connected in parallel? The potential drop across each component will be the same. Both the current passing through and the potential drop across each component are different. The same amou..
Three point charges are arranged along the x-axis. Charge q1= -4.85 nC is located at x1= 0.205m , and charge q2= 2.75 nC is at x2= -0.310m, What is the direction of the net force on q3
The sun emits electromagnetic radiation that hits the Earth. the maximum wavelength that the sun emits is at =545NM. AT THIS wavelength, the intensity of light from the sun that strikes the Earth is I= 650 W/m2
Suppose a uniform magnetic field B is applied perependicular to the plane of a semicircular loop of radius R and a current through the loop is I
A small circular hole 6.90 mmdiameter is cut in the side of a large water tank, 19.0 m below the water level in the tank. The topof the tank is open to the air. Find the volume discharged per unit time
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