Two in-phase loudspeakers are placed along a wall and are separated by a distance of 4.00 m. they emit sound with a frequency of 514 hz. a person is standing away from the wall, in front of one of the loudspeakers. what is the closest distance from the wall the person can stand and hear constructive interference? the speed of sound in air is 343 m/s.
multiple choice:
1.64 m
1.15 m
0.344 m
0.729 m
Answers: 2
Physics, 22.06.2019 14:30
Which one of the following terms is used to indicate the natural tendency of an object to remain at rest or in motion at a constant speed along a straight line? velocity acceleration equilibrium force inertia
Answers: 2
Physics, 22.06.2019 18:30
Ablock of mass m slides on a horizontal frictionless table with an initial speed v0 . it then compresses a spring of force constant k and is brought to rest. the acceleration of gravity is 9.8 m/s2. how much is the spring compressed x from its natural length? 1) x = v0*sqrt(k/(mg)) 2) x=v0*sqrt(m/k) 3) x=v0*((mk)/g) 4) x=v0*sqrt(k/m) 5) x=v0*(m/kg) 6) x=v0*sqrt((mg)/k) 7) x=(v0)^2/(2g) 8) x=v0*(k/(mg)) 9) x=(v0)^2/(2m) 10) x=v0*((mg)/k)
Answers: 3
Two in-phase loudspeakers are placed along a wall and are separated by a distance of 4.00 m. they em...
Mathematics, 20.11.2020 22:10
Mathematics, 20.11.2020 22:10
Mathematics, 20.11.2020 22:10
Mathematics, 20.11.2020 22:10
Mathematics, 20.11.2020 22:10
Mathematics, 20.11.2020 22:10
Mathematics, 20.11.2020 22:10
Mathematics, 20.11.2020 22:10
Biology, 20.11.2020 22:10
Mathematics, 20.11.2020 22:10
Biology, 20.11.2020 22:10
Biology, 20.11.2020 22:10
Mathematics, 20.11.2020 22:10
Physics, 20.11.2020 22:10