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Two identical (in all respects) explosives produce a sound level of 102 dB when exploded simultaneously at a certain place.
(a) Determine what will be the sound level if only one is exploded?
(b) Determine the intensity of this single sound source?
a narrow beam of light containing red 660 nm and blue 470 nm wavelengths travels from air through a 1.60 cm thick flat
Liquid water at 25C and 1 bar fills a rigid vessel If heat is added to the water until it's temperature reaches 50C, what pressure is developed? The average value of B between 25 and 50C is 36.2x10^-5/K. The value of K at 1 bar and 50C is 4.42x10^-5/..
A flat sheet of crystalline quartz has athickness of 3.1 cm. It is on top of aflat sheet of diamond that has a thicknessof 3.0 cm. how far would it have traveled in a vacuum
Consider a fusion reaction in which two deuterium nuclei fuse to form a tritium nucleus and a proton, How much energy is released in this reaction
The string in a yo-yo is wound around an axle of radius 0.521 centimeter. Compute what is the speed of the yo-yo when it reaches the distance of 1.28 meter
A uniform flat rectangular sheet of mass m and side lengths a and b rotates with angular speed ? around a diagonal, What is the upper bound on the torque
A rod of length L and mass M is balanced in a vertical position at rest. The rod tips over and rotates to the ground with its bottom attachment to the ground never slipping. find the velocity of the tip just before it hits
One argument against Darwin's theory of evolution draws upon the second law of thermodynamics. Does this mean that organisms violate the Second Law of Thermodynamics
Jupiter emits radio waves and also visible light (reflected Sunlight). Which of the following statements about the light we detect from Jupiter is true.
A sort of "projectile launcher" is shown in Fig. 20-65. A large current moves in a closed loop composed of fixed rails, a power supply, and a very light, almost frictionless bar touching the rails. A magnetic field is perpendicular to the plane of th..
Two traveling sine waves, identical except for a phase difference of phi, What is the phase difference between the two waves
You walk from your house 0.25 miles West to Fred's house, What is your displacement from your initial position
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