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One of the things you have learned about sound is the decibel, a unit to measure intensity. This is used to describe how loud a sound is. At many concerts, intensity level is very high and is considered part of the enjoyment by some.The rock music group, The Who, set the record for the loudest concert ever, and they regularly performed near that level. Today their lead guitarist, Pete Townshend, is nearly deaf.
Do you feel it is safe to reach these high decibel levels during rock concerts or do you feel there should be some regulation on allowable levels? If you feel that there should be some regulation, what should the limit be and why?
A 2-kg book with no initial velocity slides down an inclined plane with an angle of 20 degrees a total of 2 meters. The force of friction does 10 Joules of work, what is the final kinetic energy of the system as the book reaches the bottom of the ..
A 30.0 kg rock slides on a rough horizontal surface at 7.50 m/s and eventually stops due to friction. What average thermal power is produced as the rock stops
A person looking out the window of a stationary train notices that raindrops are falling vertically down at a speed of 3.64 m/s relative to the ground. How fast is the train moving
Discuss why one of the major complaints of subordinates regarding delegation is the issue of dumping. Offer an example of a personal experience or observation of dumping taking place.
An electron is accelerated horizontally from rest in a television picture tube by a potential difference of 5500V. It then passes between two horizontal plates 6.5cm long and 1.3 cm apart that have a potential difference of 250V. At what angle wil..
A rock weighing 7404 N rock with a volume of 29 L is completely submerged in mercury. The density of mercury is 13.6 kg/L. Decide the density of the rock. Decide the buoyant force on the rock.
An electric blanket is connected to a 120-V outlet, What is the resistance of the heater wire in the blanket
A +5.0-microC charge experiences a 0.46-N force in the positive y direction. If this charge is replaced with a charge-2.7-microC, find the magnitude of the force in this case.
A rubber rod is rubbed with fur. The fur is then quickly brought near the bulb of an uncharged electroscope. find the sign of the charge on the leaves of the electroscope
A car accelerates from 0 to 30 mph in 1.5s. How long does it take for it to accelerate from 0 to 60 mph, assuming the power of the engine is independent of velocity and neglecting friction?
Ball is thrown upward from edge of building that is 100m tall and then free falls down to earth. Elapsed time among the throw and the ball hitting the ground is 6.5 sec. What is the initial velocity?
On a day when a thunderstorm is brewing, there could be a vertical electric field of magnitude of 2.00×104 N/C. Calculate the electric flux through the bottom of the car
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