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A man stands at midpoint between two speakers, that are broadcasting an amplified static hiss uniformly in all directions. The speakers are 30.0m apart and the total power of the sound coming from each speaker is .500W. Find the total sound intensity a) when he is at his initial position half way between the speakers b) after he has walked 4.0m towards one speaker
A refracting telescope with a lens whose diameter is 33.0 cm is used to view a binary star system that emits light in the visible region. what is the distance between the two stars
A person wears a hearing aid that uniformly increases the intensity level of all audible frequencies of sound by 32.5 dB. What is the intensity delivered to the eardrum
Intelligent beings in a distant galaxy send a signal to earth in the form of an electromagnetic wave. What is the speed vrel of the galaxy relative to the earth
Two forces act on a 1.6 kg box. One of the forces is known to be Fvec = 4.7ihatbold N. The acceleration is measured to be avec = (-1.9 ihatbold - 2.8 jhatbold) m/s2. Find the second force in unit-vector notation
Classify and explain the five legal theories you could use in an attempt to have the regulation declared invalid and overturned in court.
A negative muon traveling at 32.0 percent the speed of light collides head on with a positive muon traveling at 48.6 percent the speed of light. The two muons (each of mass 105.7MeV/c2) annihilate, and produce electromagnetic energy of what total a..
A bumper car with mass m1 = 115kg is moving to the right with a velocity of v1 = 4 m/s. A second bumper car with mass m2 = 95 kg is moving to the left with a velocity of v2 = -3.7 m/s. The two cars have an elastic collision. Suppose the surface is fr..
A bullet of 0.0500 kg is fired into a block of wood. Knowing that the bullet left the gun with a muzzle velocity of 350. m/s, find The average force required to stop the bullet
A small piece of dust (mass=1.8 \(\mu\)\ g) travels horizontally through an electric air cleaner in which the electric field is 524 N/C. What is the charge on the dust particle
A transparent film has a thickness of 0.003250 cm, and a refractive index of 1.4000. Find the order of interference at theta=0 degrees
In the conduction equation Q = (kA?T)t/L, the combination of factors kA/L is called the conductance. By what factor can the body adjust the conductance
How far does the car go before it stops. A car traveling at 50m/s runs out of gas while traveling up a 30 degree slope. how long will it travel before it rolls back down.
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