Two people are 150 m apart and a speaker is placed some distance between them (assume...

Two people are 150 m apart and a speaker is placed some distance between them (assume all in a line). If one observer hears a sound intensity level of 65 dB while the other hears an intensity level of 85 dB, calculate how far from the speaker each observer is located.

Solutions

Expert Solution

genius_generous answered 1 year ago

Next > < Previous

Related Solutions

Suppose we have two galaxies that are sufficiently far apart so that the distance between them...

Suppose we have two galaxies that are sufficiently far apart so that the distance between them increases due to Hubble's expansion. If I were to connect these two galaxies with a rope, would there be tension in the rope? Would the tension increase with time? Is the origin of the tension some sort of drag between the expanding space and matter?

12-9 Two large parallel plane conducting plates are a distance d apart. The region between them...

12-9 Two large parallel plane conducting plates are a distance d apart. The region between them is filled with two l.i.h. materials whose surface of separation is a plane parallel to the plates. The first material (with properties σ1 and Ɛ1) is of thickness x, while the second material (σ2, Ɛ2) has thickness d - x. There is a steady current between the plates that are kept at constant potentials of φ1 and φ2. Find the potential at the surface...

Two grapes are given equal charges and held apart at a distance of 1.5 m. They...

Two grapes are given equal charges and held apart at a distance of 1.5 m. They experience a repulsive force of 2.2 N. Find the magnitude of the charge on each grape.

1. Two parallel wires with a length of 1.4 m each are placed 0.06 m apart....

1. Two parallel wires with a length of 1.4 m each are placed 0.06 m apart. One wire carries a current of 18.5 A and another wire carries a current of 31.9 A. Find the absolute value of the magnetic force acting on each wire. 2.What is a magnetic force acting on a charged particle of charge 6.4 x 10-6 C moving with the velocity of 4.8x105 m/s perpendicularly to the magnetic field of 6 T? 3.What is a magnetic...

Point charges of 6.75 µC and −4.00 µC are placed 0.300 m apart. (Assume the negative...

Point charges of 6.75 µC and −4.00 µC are placed 0.300 m apart. (Assume the negative charge is located to the right of the positive charge. Include the sign of the value in your answers.) (a) Where can a third charge be placed so that the net force on it is zero? m to the right of the −4.00 µC charge (b) What if both charges are positive? m to the right of the 4.00 µC charge

Two protons are brought from very far apart to a distance of 1×10−15 m and kept...

Two protons are brought from very far apart to a distance of 1×10−15 m and kept there. Then, an electron is brought to point A, equidistant from both protons and forming an equilateral triangle with the two protons. The electron is let go and passes through point B, the midpoint between protons. Determine: a. The electrostatic force between proton? b. The electric field at points A and B due to the protons

Two small nonconducting spheres have a total charge of 93.6μC. When placed 1.09 m apart, the...

Two small nonconducting spheres have a total charge of 93.6μC. When placed 1.09 m apart, the force each exerts on the other is 10.9 N and is repulsive. 1. What is the (larger) charge on the spheres? 2. What is the (smaller) charge on the other sphere? 3. What if the force were attractive? What is the larger charge on one of the spheres? 4. What is the smaller charge on the sphere?

A person with mass m=80 kg is training for pushups. Assume that the distance between the...

A person with mass m=80 kg is training for pushups. Assume that the distance between the shoulders and the feet is 1.5 m, and the center of mass is at 1 m from the feet. First, he is trying to do a normal pushup. Assuming only vertical forces, what is the force on the arms?After that proved to be too difficult, he tries a modified version, where his arms are on the kitchen counter instead (~92 cm from the ground),...

Consider two-dimensional incompressible plane viscous flow between parallel plates a distance 2h apart, with the origin...

Consider two-dimensional incompressible plane viscous flow between parallel plates a distance 2h apart, with the origin along the centerline. The plates are very wide and very long, so that the flow is essentially axial. The present case is where the upper plate moves at velocity V but there is no pressure gradient. Neglect gravity effects. Determine the velocity profile for this flow.

A rope of negligible mass is stretched horizontally between two supports that are 2.81 m apart....

A rope of negligible mass is stretched horizontally between two supports that are 2.81 m apart. When an object of weight 4190 N is hung at the center of the rope, the rope is observed to sag by 39.6 cm. What is the tension in the rope?

Subjects