Physics, 02.10.2019 05:00 mikey200059
Two in-phase loudspeakers are 3.0 m apart. they emit sound with a frequency of 490 hz. a microphone is placed half-way between the speakers and then moved along the line joining the two speakers until the first point of constructive interference is found. at what distance from that midpoint is that first point? the speed of sound in air is 343 m/s.
Answers: 1
Physics, 21.06.2019 22:00
What type of light does this light bulb produce most (i.e. at what wavelength does the spectrum have maximum intensity)?
Answers: 3
Physics, 21.06.2019 22:30
The membrane surrounding a living cell consists of an inner and an outer wall that are separated by a small space. assume that the membrane acts like a parallel plate capacitor in which the effective charge density on the inner and outer walls has a magnitude of 7.0 × 10-6 c/m2. (a) what is the magnitude of the electric field within the cell membrane? (b) find the magnitude of the electric force that would be exerted on a potassium ion (k+; charge = +e) placed inside the membrane.
Answers: 1
Physics, 22.06.2019 04:40
How is the gravitational force related to the distance between two objects?
Answers: 1
Physics, 22.06.2019 07:20
If the ama of the inclined plane below is 2, calculate the ima and efficiency. ima = efficiency =
Answers: 1
Two in-phase loudspeakers are 3.0 m apart. they emit sound with a frequency of 490 hz. a microphone...
Mathematics, 04.01.2020 21:31
Biology, 04.01.2020 21:31
Mathematics, 04.01.2020 21:31
Mathematics, 04.01.2020 21:31
History, 04.01.2020 21:31
Chemistry, 04.01.2020 21:31
English, 04.01.2020 21:31
History, 04.01.2020 21:31