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A celebrity holds a press conference, which is televised live. A television viewer hears the sound picked up by the microphone directly in front of the celebrity. The viewer is seated 2.3 meter from the television set. A reporter at the press conference is placed 4.1 meter from the microphone and hears the words directly at the very same instant that the television viewer hears them. Using a value of 343 m/s for the speed of sound, find the maximum distance between television viewer and celebrity?
Caluculate the radius of the path of this electron if itsvelocity is erpendicular to the magnetic field
A string of linear density 1.60 g/m is stretched between clamps 48.0 cm apart. the string does not stretch appreciably as tension in it is steadily raised from 15.0 N at t = 0 to 25.0 N at t = 3.50 s. Find the number of oscillations it completes du..
The "literature" refers to books, journal articles, magazine and newspaper articles, company records and documents, and even personal interviews with knowledgeable industry conflict resolution experts.
Calculate the entropy change for the following system: One kilogram of 80 C aluminum is placed into 2L of 20 C water in a container with negligible heat capacity and adiabatic walls. The water and aluminum reach thermal equilibrium. Assume specific h..
Light of wavelength 630 nm passes through a grating and then onto a screen located several meters from the grating. Determine the wavelength of the second source
Pat (mass 53 kg) and Chris (mass 72 kg) sit in a 26-kg kayak at rest on frictionless water. What's the kayak's speed after Chris catches the pack
The 4 block in the figure is attached to a vertical rod by means of two strings. When the system rotates about the axis of the rod, the strings are extended and the tension in the upper string is 77.
During each cycle, a refrigerator ejects 605 kJ of energy to a high-temperature reservoir, Determine the work done on the refrigerant in each cycle
Assume that a light bulb is a 60.0 W bulb with a resistance of240 Ω. The magnetic field has a magnitude of 0.40 T, and the length of the rod is 0.60 m. The only resistance in the circuit is that due to the bulb.
A trombone has an effective length of 160 cm and the speed of sound in air is 345 m/s. Notes are selected by moving a U-shaped tube in or out to change effective length of the trombone.
The resistivity of the body is a good measure of its overall composition. A measure of the resistance of the upper arm is a good way to estimate the percent fat in a person's body. What is the resistance of the arm
A sample of lead has a mass of 45.00 kg and a density of 1.130 104 kg/m3 at 0°C. What is the mass of the sample of lead at 93.00°C
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