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A microphone is located on the line connecting two speakers that are .845 m apart and oscillating 180 degrees out of phase. The microphone is 2.25 m from midpoint of the two speakers. What are the lowest two frequencies that produce an interference maximum at the microphone's location?
At time t=0 a grinding wheel has an angular velocity of 28.0 rad/sec. It has the constant angular acceleration of 35.0 rad/sec^2 until a circuit breaker trips at time t=1.80. From then on, the wheel turns through an angle of 433 as it coasts to the s..
Two crates, of mass 77 kg and 108 kg, arein contact and at rest on a horizontal surface (Fig. 4-47). A 729 Nforce is exerted on the 77 kg crate.If the coefficient of kineticfriction is 0.15, calculate the following: the force that eachcrate exerts..
What is an expression for the maximum displacement of m2
A movie star catches a reporter shooting pictures of her at home. She claims the reporter was trespassing and to prove her point, How far away from the subject was the reporter standing
A square loop of wire surrounds a solenoid. The side of the square is 0.1 m, while the radius of the solenoid is 0.025 m. What is the current flowing in the square loop
A pulley system has an efficiency of 87.5 percent. How much of the rope must be pulled in if a force of 648 N is is needed to lfit a 150kg desk 2.46m .
suppose you have a heat engine operating between 230 C and 100.0 c. it achieves 20.0% of the maximum possible efficiency(carnot Efficiency). what energy input will enable the engine to perform 12.0 kJ of work?
question a 5.3 -thick layer of oil n1.46 is sandwiched between a 1.1cm -thick sheet of glass and a 2.1cm -thick sheet
Two pipes of equal length are each open at one end. Each has a fundamental frequency of 480 Hz at 300 K. In one pipe the air temperature is increased to 305 K. If the two pipes are sounded together, what beat frequency results?
A box is pushed across the floor, slide with a constant velocity, and is opposed by a friction force of 25N. What is the magnitude of the force? Choose the correct answer. A.Less than 25N B.Zero C.Greater than 25N D.25n
What quantum number of the hydrogen atom comes closest to giving a 500-nm-diameter electron orbit?What is the electron's speed in this state? What is the electron's energy in this state
Consider a collision between an alpha particle (mass 4 amu) and an initially stationary oxygen nucleus (mass 16 amu). What was the initial speed of the alpha particle
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