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A person standing a certain distance from an airplane by four equally noisy jet engines is experiencing a sound level of 116 dB. What sound level would this person experience if the captain shut down all however one engine?
A surface encloses the charges q1=3.4uC , q2=7.0uC, and q3=-3.8uC. Find the electric flux through this surface
please include all units and conversions in calculations.over a time interval of 2.16 years the velocity of a planet
A gymnast on a high bar swings through three revolutions in a time of 2.90 s. The magnitude of the average angular velocity of the gymnast, in rad/s, is
The stoplight had just changed and a 1900kgCadillac had entered the intersection, heading north at 3.4m/s , How fast was the Volkswagen going just before the impact
A 1.0-cm-diameter microscope objective has a focal length of 2.8mm. What is the resolving power of the objective if it is used in an oil-immersion microscope with noil= 1.45
A venturi meter is a device for measuring the speed of a fluid within a pipe. The drawing shows a gas flowing at a speed v2 through a horizontal section of pipe whose cross-sectional area A2 = 0.0600 m2. Find the volume flow rate Q of the gas
A piece of copper wire is formed into a single circular loop of radius 13 cm. A magnetic field is oriented parallel to the normal to the loop, and it increases from 0 to 0.62 T in a time of0.38 s.
When a mass of 25 g is attached to a certain spring, it makes 19 complete vibrations in 4.5 s. What is the spring constant of the spring
A car is accelerating while its horn is blowing. Just after the car passes a stationary person, the person hears a frequency of 960 Hz. 17.5 seconds later, the frequency heard by the person has decreased to 927 Hz. When the car is stationary, its ..
a 286-g object is attached to a spring and executes simple harmonic motion with a period of 0.220 s. if the total
A velocity selector has a magnetic field of magnitude 0.32 T perpendicular to an electric field of magnitude of 0.34 MV/m. What must be the speed of a particle for it to pass through undeflected
A satellite travels at about 8000m/s. What is the factor γ for this speed? As observed from the ground, by how much would a clock traveling at this speed differ from a ground based clock after one hour (as measured by the latter)? What is the percent..
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