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Solve the following problem given below:
Problem: Suppose a certain jet plane creates an intensity level of 123 dB at a distance of 5.90 m.
A- What intensity level does it create on the ground directly underneath it when flying at an altitude of 2.01 km?
Rework your solution from the beginning and check each step carefully.
A "diving bell" is a tube or pipe that is closed at the top and open at the bottom. It is lowered into a body of water with the open end down so that air is trapped inside, Find the absolute pressure of the air in the bell
A beam of red laser light (? = 633 nm) hits a black wall andis fully absorbed. If this exerts a total force of F = 5.5 nNon the wall, how many photons per second are hitting the wall
Determine what average power in watts needed to raise an 87 kilogram object 5 meters in a time of 12 seconds
s the elevator approaches the top floor of a building, it slows to a stop. What is the direction of the elevators velocity? Acceleration
Some simple elemental superconductors (called type I) are perfect diamagnets, meaning that their internal magnetic field exactly cancels the applied field. What is the susceptibility of such superconductors
A block of mass m slides at velocity vo across ahorizontal frictionless surface toward a large curved movable rampof mass 3m as shown in Figure 1. The ramp, initially at rest, alsocan move without friction and has a smooth circular frictionless fa..
A motorcycle accelerates uniformly from rest and reaches a linear speed of 28.6 m/s in a time of 11.9 s. Find the magnitude of the angular acceleration of each tire
A refrigerator moves energy from a cold reservoir (the inside of the refrigerator) to a hot reservoir (the kitchen), but some extra energy is required in the form of work done by some outside agent (typically a compressor motor).
The speed of a longitudinal wave in a mixture of helium and neon at 300k was found to be 758m/s. what is the composition of the mixture
Two stars 19 light-years away are barely resolved by a 165 cm (mirror diameter) telescope. How far apart are the stars
A stargazer has an astronomical telescope with an objective whose focal length is 185 cm and an eyepiece whose focal length is 1.20 cm. what is the best angular magnification the stargazer will be able to achieve
does an 8-dimensional vector space contain linear subspaces v1 v2 v3 with no com-mon non-zero element such thata.
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