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Question about sound interference;
Three identical loudspeakers, spaced with 3.0 meters among adjacent speakers, play a 170Hz tone in a room where the speed of sound is 340m/s. You are standing 4.0 m in front of the middle speaker. At this point, the amplitude from each speaker individually is a.
1) How far back would the middle speaker be moved to produce maximum net sound amplitude?
2) When the sound amplitude is maximum, with what factor is the sound intensity greater than the sound intensity of a single speaker?
High-speed stroboscopic photographs show that the head of a 260 g golf club is traveling at 54 m/s just before it strikes a 46 g golf ball at rest on a tee. After the collision, the club head travels (in the same direction) at 44 m/s. Find the speed ..
if the velocity of a 5.0 kg object tied to a string is constant at 30 ms when traveling in a vertical circle having a
It is difficult to understand where a majority of the numbers are derived from in step 3. First where was the 288R derived from? Secondly where was the 615.38 R derived from?
Jack and Jill ran up a hill at 3.4 m/s. The horizontal component of Jill's velocity vector was 2.5 m/s. What was theangle of the hill? What was the vertical component of Jill's velocity?
Match the situation listed in (a)-(b) to the proper kind of errors: A- Random Error. B- Systematic Error. C- Correction. D- Mistake.
In the Atwood machine shown below, m1 = 2.00 kg and m2 = 5.50 kg, How far will m1 descend below its initial level and Find the velocity of m1 after 1.80 s
A 1.10 kg mass is attached to a light cord that is wrapped around a pulley of radius 7.30 cm, which turns with negligible friction. Themass falls at a constant acceleration of 2.35 m/s2. Find the moment of inertia ofthe pulley.
A factory worker pushes a 31.0 kgcrate a distance of 6.5 m along alevel floor at constant velocity by pushing horizontally on it. The coefficient of kinetic friction between the crate and floor is0.25.
A ball of mass 0.1 kg is suspended vertically from the ceiling with a "massless" string and brought to rest. what will be the magnitude of the resulting angular acceleration
A student sits on a swivel seat. Initially the student is at rest,holding a spinning bicycle wheel that has an angular velocity of14.2 rad/s (see figure below). The studentturns the spinning wheel upside down, reversing the direction ofits angular..
two copper wires one three times the diameter of the other have the same current flowing through them. if the thinner
Electronics and inhabitants of the International Space Station generate a significant amount of thermal energy that the station must get rid of. How much power is radiated from each panel
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