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A man stands at the midpoint between two speakers that are broadcasting an amplified static hiss uniformly in all directions. The speakers are 27.9 m apart and the total power of the sound coming from each speaker is 0.450 W.
(a) Find the total sound intensity that the man hears when he is at his initial position halfway between the speakers.
(b) Find the total sound intensity that the man hears after he has walked 4.5 m directly toward one of the speakers.
Actual revenues are equal to estimated revenues, and actual expenditures are $7,000 less than appropriations.
Which form is used to report FICA taxes for the employer and employee, and also federal income taxes for the employee?
In a physics lab experiment, a student immersed 206 one-cent coins (each having a mass of 3.00g ) in boiling water. What was the final temperature of the coins
Scottsdale Fine Piano%u2019s purchases pianos from a well-known manufacturer and sells them through their retail store. The Baby Grand Pianos sell, on average, for $2,500 each
A quantity of carbon monoxide gas is slowly compressed adiabatically in an insulated container to one-half of its volume. determine the final pressure of the gas
A 0.02wt% C steel is to be carburized at 1200°C in 4 hrs with a point 0.6mm beneath the surface reaching 0.45wt%C. calculate the carbon content required at the surface of the steel.
A laser beam is incident on two slits 0.100 mm apart and a screen is placed 4 m from the slits. what is the wavelength of the laser light
A glass lens has a convex surface with radius 25.0 cm and a concave surface with a radius of 50.0 cm. Calculate the focal length of this lens
A 600 gram particle (initially at rest at the origin) is subjected to a force of F=15i+20j (N), calculate the average power produced by this force
A Kennedy half dollar has a mass of 1.150 X 10-2 Kg. The coins is a mixture of silver and cooper, and in water weights 0.1011 N. What is the mass of the silver
Two similar guitar strings have the same length and mass, but slightly different tensions, If the beat frequency is 1.5 Hz, what is the ratio of the tensions of the two strings
A man's gold wedding ring has an inner diameter of 2.2cm at 30?C. what will be the change in the inner diameter of the ring
In an electric shaver, the blade moves back and forth over a distance of 2.0 mm in simple harmonic motion, with frequency 122 Hz. find the magnitude of the maximum blade acceleration
Determine how many times greater heat loss occurs through a glass window thats 80.0 cm high, 70 cm wide, and 0.300 cm thick (k = 0.791 W/m°C) than a electrical supply line running outside to an exterior mounted light.
A space vehicle is coasting at a constant velocity of 15.1 m/s in the +y direction relative to a space station. find the direction of the vehicle's velocity relative to the space station
A particle executes linear harmonic motion in one dimension with a frequency of 0.25 Hz about the point x=0. Determine an equation of motion for this oscillator
Use the value of the Sun's luminosity (3.90×10^26 watts, or 3.90×10^26 joules per second) to calculate what mass of hydrogen the Sun will convert into helium during its entire main-sequence lifetime of 1.2×10^10 years.
The maximum transverse acceleration of a point at the middle of the segment is 8800 m/s^2 and the maximum transverse velocity is 3.50m/s.
A wave pulse travels down a slinky. The mass of the slinky is m = 0.85 kg and is initially stretched to a length L = 6.2 m. compute the speed of the wave pulse
A small conductive rod of length 1.4 m moves with a constant velocity v=11 m/s in a direction parallel to a long wire carrying a current of 34 A. Calculate the electric potential induced across the rod
A ray of light consisting of two colors (red and blue) is incident normally on the face of a small equilateral prism. What is the distance between the two colors on the screen
The top-most tooth is protruding slightly, and the tension in the wire exerts two forces, what is the magnitude of the net force exerted on the tooth
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